[Fluid-Structure Interaction Case] Drop Analysis of a Water-Filled Bottle Using the ALE Method
Check the effects of settings that allow fluid mesh movement to follow the structure!
This presentation introduces a case study of fluid-structure interaction analysis using the ALE method in "LS-DYNA," focusing on the drop analysis of a water-filled bottle. In addition to the conventional ALE method, analyses were conducted using the Structured-ALE (S-ALE) available from Ver.R9 and the automatic conversion function from the ALE model to the S-ALE model available from Ver.R10. Results comparing behavior and computation time are presented. When comparing Case 1 and Case 2, as well as Case 3 and Case 4, it is confirmed that the S-ALE exhibits behavior nearly identical to that of the conventional ALE while also reducing computation time. 【Model Overview】 - A water-filled bottle is placed at a 5-degree tilt on a horizontal rigid floor. - Initial velocity of 4,000 mm/s and gravitational acceleration are applied to the entire model for the drop analysis. *For more details, please refer to the related links or feel free to contact us.*
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【Analysis Results】 - There are slight differences in the behavior of water depending on the presence or absence of tracking settings. - The computation time is shorter with tracking settings enabled. - Comparing Case 1 with Case 2 and Case 3 with Case 4, it can be confirmed that S-ALE exhibits behavior almost identical to conventional ALE, while also reducing computation time. - S-ALE is considered a useful method for performing analyses using the ALE method in a simple and fast manner. *For more details, please refer to the related links or feel free to contact us.*
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