日本ケイデンス・デザイン・システムズ社 List of Products and Services

By utilizing Cadence's digital twin technology, it is possible to create design and operational plans that take into account the performance of data centers. Data center engineers can consider future-oriented designs and operational policies in a virtual space. By using Cadence's products for data centers, designers, owners, and operations managers can achieve a balanced data center that ensures reliability and efficiency.

• Software (middle, driver, security, etc.)

Fidelity Pointwise not only boasts industry-leading CFD mesh generation capabilities. One of the biggest features of Fidelity Pointwise is its ability to integrate into any CFD simulation workflow. By pre-integrating with mesh export and import tools, as well as other powerful solvers and simulation tools, Fidelity Pointwise can enhance existing workflows.

• Other CAD related software

The Fidelity CharLES solver is the industry's first high-fidelity computational fluid dynamics (CFD) solver, expanding large eddy simulation (LES) to a wide range of engineering applications such as aerospace, automotive, and turbomachinery. Designed to tackle challenging computational fluid dynamics problems, this solver accurately predicts traditional complex issues in CFD related to aeroacoustics, aerodynamics, combustion, heat transfer, and multiphase flow. While high-fidelity LES simulations offer world-class accuracy and stability, they can consume thousands of CPU cores for days in a single simulation, which has traditionally limited the practical application of this technology due to cost concerns. The Fidelity CharLES software reduces the time required for LES simulations from days to hours by leveraging both CPU and GPU capabilities. The solver is optimized to consume as little memory as possible.

• Other CAD related software

The HW/SW acceleration digital twin solution "Millennium M1" is a CFD solution for system design and analysis using multiphysics. It includes our high-fidelity CFD software stack, enabling a significant reduction in turnaround time even for complex mechanical systems. 【Features】 ■ Available for both cloud and on-premises use ■ Achieves ultra-fast throughput with a combination of GPU-resident CFD solvers and dedicated GPUs ■ Provides linear scalability *Please note that the materials are in English, so feel free to contact us for more details.

• Other analyses

Data center operations managers often have to make decisions with insufficient information because they need to respond quickly to issues that arise. In such cases, there is a risk that fault tolerance and energy efficiency may be compromised, but our digital twin technology, '6Sigma Digital Twin,' is different. By utilizing this technology, you can quickly and confidently move, add, or change equipment. 【Features】 ■ Evidence-based decision-making - You can immediately check the locations where equipment can be moved or added and the feasibility of changes in settings. - You can eliminate uncertainties and make efficient decisions. ■ Centralized management of IT assets - You can integrate all asset information that was manually entered into spreadsheets onto a 3D model. - Equipment data can utilize our extensive IT equipment library. *For more details, please refer to the PDF materials or feel free to contact us.

• Software (middle, driver, security, etc.)

We would like to introduce our digital twin technology for the equipment management department, "6Sigma Digital Twin." By using this technology in equipment management, you can predict the impact of proposed changes to equipment on power distribution, space usage, weight limits, and cooling airflow, allowing for quick verification of SLA compliance. Additionally, by predicting air and cooling capacity, you can maintain sufficient redundancy while emphasizing energy efficiency. 【Features】 ■ Strengthening collaboration between teams - Analyze the impact of moving/adding/changing IT equipment on capacity ■ Optimizing cooling capacity - Fast processing speed using a powerful CFD solver - Visualize airflow and cooling capacity - Safely validate scenarios of increased set temperatures on a digital twin *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

Our digital twin technology, 'Cadence Reality DC Insight', is a new approach to data center operations management that utilizes thermal airflow analysis. Not only does it simplify data center operations management, but it also centralizes and simulates all elements that make up the data center, which have previously been managed separately by different departments. This allows for the management and reduction of the risk of downtime. 【Features】 ■ Manages data center operations using thermal airflow analysis (CFD technology) ■ Manages and reduces the risk of downtime ■ Reduces work time and tasks ■ Risk avoidance ■ Cost reduction *For more details, please refer to the PDF materials or feel free to contact us.

• Other operation management software

This is a case study of the implementation of digital twin technology for data center operations management using thermal airflow analysis with 'DataCenter Design/Insight' (formerly 6SigmaDCX). ■ Background of Implementation Citi Group owns a data center of 3,700 square meters. Built in 1986, this data center was unable to implement new equipment due to capacity constraints. To address this, they received a grant from the NYSERDA program "FlexTech," aimed at improving energy efficiency, and utilized the digital twin of the CFD analysis tool 'DataCenter Design/Insight.' ■ Results After Improvement The improved data center ensures 100% thermal compatibility and thermal safety for IT equipment, allowing the group to achieve its goals. Additionally, the PUE ratio improved to within 1% of the compliance range recommended by the Green Grid. *For more details, please refer to the PDF document or feel free to contact us.

• Other analyses

This is a case study of the digital twin technology "Cadence Reality DC Design/Insight (formerly 6SigmaDCX)" used for operational management of data centers while utilizing thermal flow analysis. As part of a project to integrate IT equipment, Cadence was asked to assist in improving data center operations before implementing large-scale equipment installations. This verification was essential for safely executing the project. In conducting the verification, the company created a 3D model as a digital twin of the facility before improvements. They analyzed the results to determine whether improvements were necessary in the room before implementing IT equipment in the real environment. From the company's verification, it was possible to safely carry out large-scale IT equipment integration projects based on scientific evidence, maximizing the capacity of the data center. [Results] - Demonstrated optimization of airflow and reduction of operational costs. - Implemented IT equipment layout plans based on evidence identified from the analysis, allowing for the acquisition of appropriate data in advance. *For more details, please refer to the PDF document or feel free to contact us.*

• Other analyses

This is a case study of the digital twin technology "Cadence Reality DC Digital Twin," which manages data center operations using thermal flow analysis. A major healthcare company in the United States was seeking ways to effectively utilize unused capacity without compromising fault tolerance. The company was looking for a "predictive tool" that could efficiently manage power, cooling, and available space to respond to increasing power density, and due to its high confidentiality, it required a "fail-safe method" to achieve these goals. As a result, a project was initiated to revamp the traditional data center using our thermal fluid analysis (CFD) product. By migrating systems and services from colocation to its own data center, the company achieved annual cost savings of approximately $300,000 (about 40 million yen). [Case Overview] ■Scope: Design and operation of data centers, optimization, and capacity planning implementation ■Software Used: Cadence Reality DC Digital Twin *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

This is a case study on the introduction of digital twin technology for operational management of data centers using thermal flow analysis, titled 'Cadence Reality DC Design.' In 2018, Kao Data began operations of the first data center, KDL1, out of four planned data centers on a campus of approximately 146,000 m². To establish an energy-efficient design, the company considered an indirect evaporative cooling system that uses water evaporation to cool air instead of a mechanical cooling system. They collaborated with us to validate the design of the indirect evaporative cooling system within the facility using '6SigmaDigital Twin.' The company designed a data center that achieves high performance without using any mechanical cooling. [Case Overview] ■ Scope of Application: Design and operation of colocation data centers ■ Software Used: Cadence Reality DC Design *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

This is a case study of the digital twin technology "Cadence Reality DC Digital Twin," which utilizes thermal flow analysis for the operation and management of data centers. Thesee DataCenter aims to achieve both "an interactive customer experience" and "an environmentally conscious, energy-efficient data center." To do this, they needed to achieve a "99.995% uptime" and "maximize capacity utilization." Therefore, from the design phase of the data center, they made decisions using our CFD analysis product and continued to use it in operational management to maximize performance. By using our product, they can "understand the actual capacity of the infrastructure," "predict the impact of new projects," and "validate and propose suitable locations for presales projects." [Case Overview] ■ Scope: Design and operational management of colocation data centers ■ Software Used: Cadence 6Sigma Digital Twin *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

This is a successful case study of the thermal fluid analysis software 'Celsius EC Solver' for accurately and quickly analyzing the thermal performance of electronic devices. In Europe, there is an engineering competition called Formula Student, where student teams from engineering departments design, manufacture, validate, and race small-scale formula-style racing cars. Team Bath Racing Electric from the University of Bath in the UK needed to lower the battery temperature to meet the regulations while progressing with the design of their electric vehicle (EV) category in the competition. To achieve this, they adopted the electronic thermal fluid analysis software 'Cadence Celsius EC Solver,' which can analyze the thermal performance of electronic systems with high precision and speed. This allowed them to identify issues with the existing design and manufacture the EV based on new design proposals. [Case Overview] ■ Application Scope: Electronic devices for automobiles ■ Software Used: Cadence Celsius EC Solver ■ Benefits: Analysis speed, high precision, efficient design *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

The "Celsius EC Solver" is a thermal fluid analysis software designed to analyze the thermal performance of electronic devices with high precision and speed. It employs powerful solvers and grid generation techniques, allowing designers to model and analyze complex electronic devices, reducing the risk of failure, and optimizing thermal solutions to maximize performance. It can analyze not only the airflow, temperature, and heat conduction within electronic device assemblies and enclosures, but also natural convection, forced convection, solar radiation, and liquid cooling. 【Features】 ■ Capable of addressing thermal and cooling issues of electronic devices in the early stages of design ■ Proactively mitigates costly design revisions and manufacturing delays ■ Enhances product performance and reliability ■ Scalable to hundreds of cores, accommodating complex systems *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

"Cadence Reality DC Design (formerly 6SigmaRoom)" is a CFD (Computational Fluid Dynamics) tool for data centers. By using this product, which is one of the Wear Suite, IT teams and facility teams can achieve closely coordinated capacity planning. FutureaFacilities' simulation technology can predict the impact of planned changes within the data center facility on "fault tolerance," "physical capacity," and "cooling efficiency" in advance. 【Features】 ■ Import existing CAD drawings and shapes to reduce analysis time ■ Analyze the effects of various external environmental factors ■ Display a 3D model of the data network at the logical level ■ Model the flow paths within piping in the data center in one dimension ■ Analyze various scenarios *For more details, please refer to the PDF materials or feel free to contact us.

• Software (middle, driver, security, etc.)

"Cadence Reality DC Insight (formerly 6SigmaAccess)" is software that allows users to display digital twins in a browser and create change proposals for moving, adding, or modifying IT equipment. The created change proposals are automatically sent as change requests to the "DataCenter Insight Platform." Data center engineers can review and analyze these change requests using the same product, allowing them to verify and understand potential issues that may arise in the actual facility in advance. This workflow aims to "manage operations while considering the impact of environmental updates and eliminate risks that may occur in the actual facility." 【Features】 ■ Access to over 4,000 types of vendor libraries ■ Ability to create table data and bar graphs from asset information and export them ■ Multiple users can work simultaneously on the same model ■ Analysis can be performed during air conditioning system shutdowns and power outages ■ The impact of changes such as equipment installation or relocation can be predicted using CFD analysis before implementation *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

We will hold an online event, "CFD Solution Seminar 2022," over two days on November 16 and 17, 2022. In this seminar, we will introduce our new CFD integrated environment, Fidelity, and present our product lineup and solutions related to various fields. We will showcase numerous ways to utilize Cadence software, incorporating our latest hot topics such as the analysis of liquid hydrogen, aerodynamic optimization of drones, Joule heating analysis of electronic devices, and digital twin creation for data centers. We encourage you to participate. 【Seminar Overview】 ■ Date and Time: November 16 (Wednesday) 14:00-16:05 November 17 (Thursday) 14:00-15:40 ■ Organized by: Cadence Design Systems, Inc. ■ Cost: Free ■ Venue: Online (Zoom Webinar) ■ How to Participate ・Those who register will receive Zoom access information by 17:00 the day before each event. ■ Registration Deadline: November 15 (Tuesday) 16:00 *For more details, please refer to the PDF document or feel free to contact us.

• Technical Seminar

"Fidelity CFD" is a solution developed based on the expertise and technology of the Japan Cadence NUMECA sales team and Pointwise in the field of fluid dynamics, as well as the specialized knowledge of computational processing software that Cadence has uniquely accumulated. It integrates all the technologies necessary for CFD engineers to execute simulations of multiphysics systems with a rational workflow. It offers a fluid analysis solver characterized by high-order accurate methods, high-fidelity turbulence simulations, and accelerated large-scale computations, allowing for accuracy improvements of up to 10 times, enhanced performance, and reduced development turnaround times. [Features] - Accuracy improved by up to 10 times with high-order accurate CFD solvers - Reduces turnaround times for complex CFD analyses in aerospace, automotive, defense, marine, and turbomachinery from several weeks to within a day - Capable of accelerating the meshing process of Pointwise solutions used in the aerospace field by up to 3 times *For more details, please refer to the related link page or feel free to contact us.

• Other analyses

On November 5, 2021 (Friday), we will hold the Cadence TECH TALK "Japan Cadence NUMECA Sales Team Solution Seminar 2021." The Japan Cadence NUMECA Sales Team offers advanced and comprehensive solutions in CFD analysis. In this seminar, we will introduce the new CFD integrated environment, OMNIS, and present specific case studies tailored to various analysis purposes. We will also share examples of new technologies and upcoming release plans, so please join us. 【Seminar Overview】 ■ Date and Time: November 5 (Friday) 14:00-16:30 ■ Organized by: Cadence Design Systems, Japan ■ Cost: Free ■ Venue: Online (Zoom Webinar) ■ How to Participate - Those who register will receive an access URL via email from cdsj_info@cadence.com by 17:00 the day before the event. ■ Registration Deadline: November 4 (Thursday) 16:00 * For more details, please refer to the PDF document or feel free to contact us.

• Technical Seminar

Please try the new version of OMNIS, which features a new particle solver, mesh generation using the S2V method, and over 100 other new functionalities. In the live webinar, you will have the opportunity to experience the power of this software and ask questions to experts. [Content of this webinar] ■OMNIS/Hexpress ■OMNIS/AutoGrid ■OMNIS/Turbo ■OMNIS/Open ■OMNIS/Mpacts It also includes many other features. *For more details, please refer to the related link page or feel free to contact us.

• Technical Seminar

Predicting the performance of heat exchangers is often a challenging task. To use simplified methods such as the NTU (Number Transfer Units) method, a series of assumptions must first be made. By leveraging CFD, it is possible to analyze the flow details more accurately. With OMNIS, you can easily set up meshes and simulations to analyze this type of problem. See how Cadence's OMNIS provides fast and reliable results and contributes to the development of heat exchangers. In the webinar, you will learn about mesh creation and simulation for plate counterflow heat exchangers. [Topics covered in the webinar] - Multi-domain mesh creation, combining S2V and V2V approaches - Conjugate heat transfer simulation using OMNIS/Open-PBS *For more details, please refer to the related link page or feel free to contact us.

• Technical Seminar

The aging of machinery is a challenge for engineers. To maximize the lifespan of turbo machinery, minimize losses, and apply new technologies, upgrading flow paths through CFD simulation, optimizing blades, and designing seal leaks are very effective measures. Cadence Design Systems and Concepts NREC provide all the necessary tools to design extremely complex shapes and analyze them with high precision to optimize performance within constraints. In a 30-minute webinar, you can learn how to operate AxCent, OMNIS/Turbo, and the optimization kernel Minamo. [Content] ■ Calculate and analyze the performance of steam turbines ■ Generate parametric models with AxCent ■ Redesign turbines with new blades, flow paths, and seals through optimization *For more details, please refer to the related link page or feel free to contact us.

• Technical Seminar

This document introduces the distributed parallel functionality of the Japan Cadence NUMECA sales team's automatic mesher. It includes sections such as "Overview of Distributed Parallel Functionality," "Automatic Mesher: Distributed Parallel Functionality (Overview of Domain Division)," and "Examples of Automatic Mesher Applications: Distributed Parallel Functionality," all illustrated with images. We encourage you to read it. [Contents] ■ Overview of Distributed Parallel Functionality ■ Automatic Mesher: Distributed Parallel Functionality (Overview of Domain Division) ■ Examples of Automatic Mesher Applications: Distributed Parallel Functionality *For more details, please refer to the PDF document or feel free to contact us.

• Other network tools

This document introduces the AutoSeal (automatic closing surface generation) feature of the Japan Cadence NUMECA sales team’s automatic mesher. It includes an overview of the "AutoSeal feature," "Automatic Closing Surface Generation: AutoSeal," and "How to Use," along with images. Please take a moment to read it. [Contents] ■ Overview of AutoSeal feature ■ Automatic Closing Surface Generation: AutoSeal ■ How to Use ■ Closing Process Example (Original Shape) ■ Closing Process Example (Automatically Generated Processing Surface) ■ Closing Process Example (After Filling Holes) *For more details, please refer to the PDF document or feel free to contact us.

• Other network tools

This is an introduction to a case study implemented at Honda R&D. Previously, various commercial mesh creation tools from other companies were used, but the quality of the viscous layer often diverged, leading to dissatisfaction. Therefore, we switched to our 'HEXPRESS/Hybrid'. As a result, not only were these issues resolved, but CPU time was reduced to one-third, and engineering time was shortened to 30 minutes per mesh. [Case Study] ■Challenges - The quality of the viscous layer often diverged, leading to dissatisfaction. - It was difficult to become proficient. ■Effects - CPU time was reduced to one-third. - Engineering time was shortened to 30 minutes per mesh. - Turnaround time was reduced. - It became possible to research many designs in a short time. *For more details, please refer to the PDF document or feel free to contact us.

• Other network tools

This document is a collection of case studies on mesh generation using AutoMesh. In the automotive field, we introduce mesh generation for complex vehicles, open cars, and sidecars, as well as automotive aerodynamic analysis. Additionally, we include case studies on mesh generation in the aerospace and medical fields, accompanied by images. We invite you to read it. 【Contents (excerpt)】 ■Automobiles - Mesh generation for complex vehicles - Mesh generation for vehicle interiors and undercarriages - Mesh generation for open cars - Mesh generation for sidecars *For more details, please refer to the PDF document or feel free to contact us.

• Other network tools

Accurate predictions for self-propelled ships are a significant challenge in CFD. Turbulence modeling is an extremely important issue, but simulating propellers involves more extensive physical modeling. This includes transition, cavitation, turbulence, and ventilation. Capturing very small-scale flows, such as vortices around the chip, also requires more advanced numerical techniques. The RANS code of ISIS-CFD has been sufficiently validated for predicting resistance and wake using advanced turbulence models. Various mesh adaptation techniques with different levels of refinement are available. Additionally, a sliding mesh approach has recently been implemented. This paper provides a detailed validation of the ISIS-CFD code for computations related to self-propelled ships. The well-known KCS test case has been adopted for this purpose. This case was proposed at workshops in Tokyo in 2005 and Gothenburg (Sweden) in 2010. *You can download the English version of the catalog. *For more details, please refer to the PDF materials or feel free to contact us.

• Other network tools

OpenLabs offers exceptional usability and can be described as a "dialogue system" with the basic CFD code. By using this system, you can access the routines of the basic CFD code (routine variables, all existing physical models, and parameters). With just a few lines of commands, you can modify or add transport equations, source terms, initial and boundary conditions, fluid properties, algebraic relations, thermal and transport properties. These commands are easy to understand and do not require knowledge of programming or code structure, making it accessible for anyone to use in developing new models. The underlying code of FINE/Open is a highly robust unstructured grid solver equipped with many models, including turbulence, multiphase flow, combustion, and radiation. These models are backed by a solid CFD foundation and possess high quality suitable for specialized applications. *You can download the English version of the catalog. *For more details, please refer to the PDF materials or feel free to contact us.

• Other network tools

Fluid analysis simulations take a lot of time from CAD modifications to mesh generation. Additionally, mesh generation requires skilled artisans to spend a significant amount of time, which poses a considerable burden on companies. Cadence's "Omnis/AutoMesh" can fully automate the mesh creation process, which previously took a long time from CAD modifications. With the ability to build a fully automated fluid analysis system through batch processing, tasks that would typically take a month can now be completed in just half a day, significantly reducing work time. 【Features】 ■ Fully automated mesh creation ■ No need for CAD cleanup ■ High-speed generation of large meshes through distributed parallel processing ■ Mesh generation primarily using hexahedra ■ Ability to modify and add shapes using CAD functions, etc. *For more details, please download the PDF or contact us.

• Thermo-fluid analysis

【Fully Automatic Mesh Generation】 A fully automated fluid analysis system can be constructed using batch processing. 【No CAD Cleanup Required】 - Fine gaps can be generated without modification. - Large gaps are automatically filled using the AutoSeal function. 【Fast Generation of Large Meshes through Distributed Parallel Processing】 100 million meshes can be generated in 25 minutes using 96 parallel processes. 【Mesh Generation Primarily with Hexahedra】 - High-quality continuous meshes primarily composed of hexahedra are automatically generated (approximately 60-70% are hexahedral meshes). - Function to insert high-quality boundary layers (compatible with complex shapes). 【Shape Modification and Addition Possible with CAD Functions】 All necessary CAD functions for modeling fluid analysis are covered. *For more details, please download the PDF or contact us.

• Thermo-fluid analysis

The Japan Cadence NUMECA sales team has developed the OpenLabs environment, which offers a new approach to open CFD. OpenLabs can be described as a highly user-friendly "interactive system" with CFD codes. Using this system, users can access the routines of basic CFD codes (routine variables, existing physical models, and parameters). With just a few lines of commands, users can modify or add transport equations, source terms, initial and boundary conditions, fluid properties, algebraic relationships, thermal and transport properties. This command does not require knowledge of programming or code structure, making it easy to use. The underlying code of FINE/Open is a very robust unstructured grid solver equipped with many models, including turbulence, multiphase flow, combustion, and radiation. These models are backed by a solid CFD background, ensuring high quality. This code is adaptable across a wide range of fields, from incompressible to supersonic and hypersonic flows, ideal gases to liquids and compressible fluids, internal and external flows, and fixed and rotating coordinate systems.

• Thermo-fluid analysis

The multihull Groupama 3 was forced to withdraw from the Jules Verne Trophy (yacht race) held between Brazil and Africa in November 2009. During this time, it became clear that a comprehensive study of the slamming phenomenon affecting the hull's bottom under unexpected navigation conditions was necessary. A study in South Africa confirmed that structural damage, even when underestimated, is caused by slamming stresses occurring at the rear of the hull in the windward direction. This condition is observed when a multihull takes off from the water at speeds of 30 to 40 knots in swells and then lands. The latest version of the FINE/Marine software, developed by CNRS at École Centrale Nantes and the NUMECA sales team in Japan, allows for accurate simulation of such problems. By using a solution-adaptive grid algorithm, it enables precise modeling of the effects of the water surface on the hull and the calculation of the resulting pressure fields. These tools assist designers in reinforcing the hull's structure.

• Thermo-fluid analysis

A solution-adaptive grid method has been developed for the FINE/Marine fluid solver. This method is fully integrated into the fluid solver and is designed to apply the RANS solver to various fields. Therefore, this method is constructed to be as general, flexible, and robust as possible, allowing for directionally adaptive solutions, unstructured grids, and fully parallelized computations. The evaluation of the criteria for solution adaptation is conducted in such a way that the criteria for solution adaptation can be easily exchanged.

• Thermo-fluid analysis

Using Navier-Stokes-based CFD simulations, two standard problems were studied, and the hydrodynamics of submerged lift surfaces were investigated. (1) Flow around a three-dimensional submerged lift surface with an elliptical shape and a constant camber wing cross-section. (2) Flow around a two-dimensional symmetric wing cross-section. The dependence of the resulting hydrodynamic loads on changes in velocity and angle of attack was examined under fully submerged conditions that allowed for the occurrence of cavitation. A comparison of results obtained from numerical simulations and measurements from experiments conducted in a pressurized test tank facility was presented.

• Thermo-fluid analysis

This paper demonstrates that the differences between model-scale flow and full-scale flow have significant impacts. It has been found that in various projects, the ranking of design candidates in optimization or the operating conditions in trim optimization differ between model-scale and full-scale calculations. The differences between model-scale and full-scale are particularly evident in the relatively different boundary layers and breaking waves behind the transom stern. Therefore, in simulation-based design projects, full-scale analysis is considered preferable. In rule-based optimization, the choice of approach becomes more complex due to time and computational resource constraints. The hybrid calculation method that reuses CFD information and metamodeling is seen as a technology that paves the way for using full-scale CFD as a standard option in optimization.

• Thermo-fluid analysis

In aerodynamic noise prediction, applying a synthetic turbulence reconstruction model requires minimal computational resources, making it very attractive from an industrial perspective. In this case study, the SNGR (Stochastic Noise Generation and Radiation) method was evaluated for its application in various industries for robust and efficient aerodynamic noise simulation. The SNGR method has been found to lack convergence in that it does not model the continuous energy transport characteristic of turbulent cascades. Additionally, the energy transport process significantly reduces the temporal correlation of turbulent structures, which is particularly relevant to sound radiation.

• Acoustic Analysis

This paper presents case studies of optimization design at multiple operating points for industrial pumps. Many optimization designs using optimization methods and inverse solutions are focused on a single operating point, raising concerns that efficiency may deteriorate significantly at points far from the design point. In this paper, we used the turbo machinery three-dimensional optimization design tool FINE TM /Design3D. This software allows for flexible designs, such as maximizing efficiency at multiple operating points or maximizing efficiency at the design point without reducing efficiency at points significantly away from the design point. Particularly for industrial pumps, the wide range of flow operating conditions increases the demand for optimization design at multiple operating points. By conducting optimization design at different flow rates, we were able to improve the performance across the entire performance curve.

• Thermo-fluid analysis

The internal flow of gas turbines is characterized by unsteady physical phenomena caused by factors such as boundary layers on the airfoil surfaces, interaction between moving and stationary blades, shock waves, and tip leakage flows. However, particularly in multi-stage axial gas turbines, steady (quasi-steady) analyses are often conducted due to reasons such as the increase in mesh count. Additionally, complex features like fillets, three-dimensional leakage paths, and cooling holes can make it difficult to generate accurate grids due to their complexity, posing challenges for turbine designers. This article introduces three solutions provided by the Japan Cadence NUMECA sales team to address the issues faced by gas turbine designers mentioned above. The first is AutoGrid5, a grid generation software that automatically generates complete hexahedral grids for complex turbomachinery, taking into account features such as fillets and cooling holes. The second is FINE/Turbo, a turbomachinery fluid analysis solver that conducts fluid analysis with high speed and accuracy, particularly capable of rapidly analyzing the interaction between moving and stationary blades in turbomachinery. The third is FINE/Design3D, an optimization design support system specialized for turbomachinery, which enables optimization design that has been increasingly demanded in recent years.

• Thermo-fluid analysis

In the fluid analysis of turbo machinery, unsteady calculations that model the entire blade row incur significant computational costs. One solution to this problem is an approximate method for unsteady calculations using nonlinear harmonic methods. This approach involves decomposing the flow field into time-averaged and time-varying components, solving the transport equations for each, and reconstructing the unsteady flow field from these components. This method eliminates the need for unsteady calculations and allows for modeling only the flow path of one blade or a blade pattern, significantly reducing computation time and memory usage. Additionally, it is expected to achieve higher accuracy compared to steady calculations. This paper discusses the visualization of unsteady flow reproduction during the presentation.

• Thermo-fluid analysis

This paper introduces a new method called Adaptive Spectral Reconstruction (ASR) for the probabilistic reconstruction of broadband noise sources, starting from steady-state CFD analysis. The method is applied to evaluate the noise radiated from a car side mirror model. The new method performs the reconstruction of the frequency components of the turbulent field (SNGR) and also executes the reconstruction of spatial cross-correlations (RPM), making it a sort of mixing of the two methods derived from SNGR and RPM. The turbulent field is reconstructed by the sum of convective plane waves, but two essential differences are introduced by SNGR. The first difference concerns the spatial variation of the parameters that define the waves. This variation depends on the wavelength of each wave and changes in relation to the correlation length of the CFD rather than remaining constant. The second innovative aspect is the use of a dedicated fully hexahedral adaptive mesh that is subdivided based on the expected local correlation length. This mesh is sufficiently refined to capture the relevant acoustic length scales.

• Thermo-fluid analysis

To achieve better manufacturing, it is necessary to efficiently combine experiments, measurements, and numerical simulations. Numerical simulations, particularly fluid analysis, have become capable of simulating much larger and more intricate phenomena than before, thanks to improvements in computer performance. However, it is still likely that considerable effort and time are required for the analysis of large-scale and complex phenomena. At the "Japan Cadence NUMECA Sales Team Conference 2019" held on June 4-5, we will introduce how customers can easily and quickly solve the advanced and complex problems they face by utilizing the solutions provided by the Japan Cadence NUMECA Sales Team. Many actual users will also present their experiences. [Program Introduction (Excerpt)] ■ Progress of application cases in Honda turbo machinery ■ Utilization of AutoGrid5 for high-precision performance prediction of aircraft engines ■ Case studies on the use of FINE/Turbo in gas turbine development ■ Use of global optimization methods in aerodynamic design problems, etc. *For more details, please download the PDF or contact us.

• others

"AutoBlade" is an advanced and user-friendly 3D parametric modeler specialized in the design of turbo machinery. By automatically adapting CAD shapes to parametric shapes, it is suitable for user-friendly and optimized design. Furthermore, control points that express the shape can be manipulated on the GUI. Additionally, multiple viewpoints can be operated through a multi-window interface, enabling a user-friendly design. 【Features】 ■ Automatic adaptation from CAD shapes to parametric shapes ■ Manipulation of control points that express the shape on the GUI ■ Ability to express shapes with fewer parametric variables ■ Automatic execution of a series of operations for grid generation, analysis, and visualization on the GUI ■ Capability to evaluate the performance of 3D designed shapes on the spot *For more details, please refer to the PDF materials or feel free to contact us.

• others

"FINE/MARINE" is a high-precision fluid analysis integrated environment specialized for flows around ships. It features a fully automated mesh generator "HEXPRESS" that accommodates complex shapes, a fluid analysis solver "ISIS-CFD" specialized for flows around hulls, equipped with moving mesh adaptation and six degrees of freedom hull motion capabilities, as well as visualization software "CFView." [Features] ■ Specialized for flows around ships ■ Capable of various analyses ■ Fully automated mesh generation for complex shapes such as energy-saving appendages ■ High-resolution analysis of free surfaces ■ Capable of analyzing hull motion in waves *For more details, please refer to the PDF materials or feel free to contact us.

• others

"FINE/Design3D" is a highly integrated 3D optimization design tool for improving the performance of turbomachinery. By utilizing a user-friendly interface, the 3D parametric blade modeler AutoBlade, and mathematical methods such as neural networks, experimental design, and genetic algorithms, it is possible to design shapes with optimal performance in a short period of time. 【Features】 ■ Fast optimization design ■ Optimization design tailored to user needs ■ Monitoring of optimal design results *For more details, please refer to the PDF materials or feel free to contact us.

• others

"OMNIS" integrates all Japanese Cadence NUMECA sales team software into a common environment. It realizes an open multi-physics functionality and collaborative work environment. It is equipped with optimization for analysis and complex domain design, as well as CAD cleaning and shape creation features. An approach that incorporates applicable fields and user needs has been taken. 【Features】 ■ Integration of all Japanese Cadence NUMECA sales team software into a common environment ■ Open multi-physics functionality ■ Optimization for analysis and complex domain design ■ CAD cleaning and shape creation features ■ Intelligent search engine *For more details, please refer to the PDF materials or feel free to contact us.

• Thermo-fluid analysis