We will conduct thermal airflow simulations in the basic design phase plan.
In recent years, there have been many cases where natural ventilation utilizing outside air is actively incorporated during intermediate periods. Among these, a ventilation method that uses shafts installed within the building as exhaust and supply air systems has been considered from the basic design stage to efficiently carry out natural ventilation. The selection of appropriate locations and sizes for supply and exhaust openings is extremely important, and conducting thermal airflow simulations can provide insights into the overall operation of the building. In this analysis, we assumed windy conditions and performed thermal airflow simulations based on the plans at the basic design stage. For more details, please download the catalog.
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basic information
【Analysis Model and Conditions】 ○ Detailed modeling of the internal space of a building measuring 48.0m × 24.0m and 16.0m high (equivalent to 4 floors) ○ Number of grids: 196 × 121 × 83 = 1,968,428 ○ Air supply vents are installed on three exterior walls of each floor from the 1st to the 4th floor ○ The shafts to the outdoor exhaust vents have a height of one floor above the two shafts, with grilles installed on three sides similar to the air supply vents ○ Exhaust vents from the indoor space to the shafts have transom openings installed on three sides of the shafts from the 1st to the 4th floor ○ Indoor thermal loads consider internal heat generation from humans, equipment, etc., as well as flow-through loads and solar radiation loads ○ External wind is set at a wind direction of 45 degrees to the long side of the building, with a wind speed of 3.5 m/sec 【Analysis Results】 ○ A similar temperature distribution is observed from the 1st to the 4th floor, with the highest temperature on the 4th floor ○ Airflow from the air supply vents and convection from indoor thermal loads generate airflow on each floor, but efficient ventilation is lacking ○ The results of this analysis demonstrate that the position and size of the air supply and exhaust vents are not appropriate → In the next step, it is necessary to examine the position and size of the air supply and exhaust vents, including the opening ratio of each opening ● For more details, please contact us or download the catalog.
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In environmental simulation, we develop and sell proprietary 3D fluid analysis programs and provide contract analysis services using these software tools. For over a decade, we have been engaged in thermal fluid analysis in fields such as architecture, civil engineering, machinery, and electronics, handling numerous analyses and accumulating a wealth of know-how and knowledge. Our diverse analysis and visualization functions, honed through practical experience, have received high praise as CFD software from many companies and research institutions. ● Import functionality for BIM-compatible CAD data such as Revit and DXF ● Map information (GIS) data import functionality ● SuperCartesian functionality that freely represents diagonal boundaries and complex curved surfaces ● High-speed, high-precision radiation calculations and high-precision turbulence analysis using DNS ● Moving boundary problem analysis functionality that accommodates the movement of multiple objects in space ● User-friendly interface and easy-to-understand animation features In addition to software support, we also accept contract analyses. Focusing on air conditioning ventilation and wind environment analysis, we provide high cost-performance solutions for a wide range of problems, from simple, small-scale issues to complex, large-scale analyses. We look forward to your visit, along with our abundant analysis case studies.
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