An accurate sharp interface method for two-phase compressible flows at low-Mach regime

Abstract : An accurate numerical approach is presented for computing two-phase flows at low-Mach regime. Approaches based on an incompressibility assumption are rather robust and efficient, but some compressible effects can occur in this kind of flow and may impact the behavior of the fluid. In order to develop an accurate model, both the liquid and gas are considered compressible and described by a precise compressible solver. An all regime numerical scheme has been used to eliminate the extra numerical dissipation. The interface between two-phase flows is captured by the Level-Set method (Osher and Sethian 1988) and considered to be sharp. The interface capturing issue of the Level-Set method within the Eulerian framework is the key point of the two-phase flow simulations, and in this work we propose an high-order coupled time-space approach for interface advection. Two numerical test-cases have been employed to validate and enlighten the good performance of the present numerical approach.
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https://hal.archives-ouvertes.fr/hal-02187217
Contributor : Limsi Publications <>
Submitted on : Wednesday, July 17, 2019 - 4:38:43 PM
Last modification on : Monday, February 10, 2020 - 6:14:05 PM

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  • HAL Id : hal-02187217, version 1

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Ziqiang Zou, Nicolas Grenier, Christian Tenaud, Edouard Audit. An accurate sharp interface method for two-phase compressible flows at low-Mach regime. International Conference on Multiphase Flow, May 2019, Rio de Janeiro, Brazil. ⟨hal-02187217⟩

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