A new and improved cut-cell-based sharp-interface method for simulating compressible fluid elastic–perfectly plastic solid interaction

Liang Tao and Xiao-Long Deng

Mathematics and Computers in Simulation (MATCOM), 2020, vol. 171, issue C, 246-263

Abstract: In this work, a new integrated, conservative and consistent cut-cell-based sharp-interface method is developed to simulate compressible multi-material problems with various interfaces. In the proposed method, the material interfaces are represented by quadratic-curve cut faces evolved with the help of the level set equation. Multiple level set functions are applied to address multiple interfaces. The system is mainly developed in Eulerian coordinates with the cut faces moving in a Lagrangian manner, thus, it benefits from a Lagrangian moving interface in terms of accuracy and handles large deformations more conveniently than those works in a Lagrangian framework. Clear improvements in robustness and accuracy over the modified ghost fluid method can be observed in various 2D test cases.

Keywords: Cut cell method; Riemann solver; Fluid–structure interaction; Von Mises yield criterion (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:171:y:2020:i:c:p:246-263

DOI: 10.1016/j.matcom.2019.05.010

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