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September 16, 2025Physics of Fluids

A three-phase fluid–structure interaction algorithm for compressible flows and thin-walled structures based on the extended ghost fluid method

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This algorithm addresses numerical oscillations in fluid-structure interactions, suggesting improvements in accuracy and stability.

The proposed algorithm effectively eliminates numerical oscillations at fluid–structure interfaces.
Using a fifth-order weighted essentially nonoscillatory finite difference method enhances flow calculations for compressible two-phase fluids.
The fluid–structure coupling rules established improve the stability of simulations involving thin-walled structures.
Comparative analysis of numerical and experimental results reveals strong accuracy and mass conservation in the simulations.

Zheng et al. (2025) studied this question.

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