Far Eastern Mathematical Journal

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Numerical modeling of the Rayleigh-Taylor instability using multiphase model

Vasiliev A.E.

2025, issue 2, P. 194–210 DOI: https://doi.org/10.47910/FEMJ202513

Abstract

The article presents research on the applicability of the Baer-Nunziato type multiphase systems to the numerical modeling of the Rayleigh-Taylor instability in metals under extreme «pseudo-liquid» conditions. A model problem with a sinusoidal disturbance of the contact boundary between metals is considered. The results show compliance with theoretical estimates. A study of the influence of compressibility on the development of the process was conducted. The results obtained indicate the influence of phase compressibility not only on the process itself, but also on the features of its numerical modeling.

Keywords: numerical modeling, multiphase flow, Rayleigh-Taylor instability, Baer-Nunziato equations, HLLC solver.

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References

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