Abstract
Based on the Modified Ghost Fluid Method (MGFM) and Modified Ghost Solid Method (MGSM), the Modified Ghost Method (MGM) is developed to deal with the combined compressible multi-fluid multi-solid interactions. The exact solution for 1D fluid-elastic-plastic solid Riemann problem is derived, which is subsequently used to verify the validity of the MGM as applied to fluid-elastic-plastic solid interaction. Using MGM, we construct a coherent and consistent approach to simulate truly compressible multi-medium problems as for gas-water-solid-solid interaction. Similar to the 1D cases, several 2D multi-medium cases are simulated to show the versatility and ease of application for the MGM. Finally, a multi-medium case with a complex geometry in solid domain is simulated, which shows that the proposed approach can be effectively used to study the response of the various structure domain.
Original language | English |
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Pages (from-to) | 12-26 |
Number of pages | 15 |
Journal | Computers and Fluids |
Volume | 154 |
DOIs | |
Publication status | Published - 1 Sept 2017 |
Keywords
- Compressible multi-fluid multi-solid interactions
- Elastic-plastic solid
- Level set method
- Modified ghost method