Investigation of different Phase-Field models in compressible multiphase flows under a unified high-order and bound-preserving framework

ORAL

Abstract

Godunov-type schemes have been widely used in compressible multiphase flows to capture both shocks and material interfaces. One of the long-lasting challenges is that material interfaces are thickened and will eventually disappear due to numerical diffusion with the use of Godunov-type schemes. Phase-field models have shown their effectiveness in competing with numerical diffusion adjacent to material interfaces, leading to a constant interface thickness. The reduction-consistent formulation provides a high-order accurate and bound-preserving framework that is general enough for coupling different phase-field models for compressible multiphase flows. Under this framework, the behavior of different phase-field models in compressible multiphase flow regime is investigated, and the interaction between the Godunov-type schemes and phase-field models are studied. This allows for accurate interpretation of numerical simulation results of different phase-field models, particularly their subgrid behavior, for compressible multiphase flows.

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Presenters

  • Ziyang Huang

    University of Michigan, University of Michigan; University of Alabama

Authors

  • Ziyang Huang

    University of Michigan, University of Michigan; University of Alabama

  • Shahab Mirjalili

    Stanford University, Department of Mechanical Engineering, Stanford University

  • Makrand A Khanwale

    Stanford University, Center for Turbulence Research

  • Suhas Jain

    Woodruff School of Mechanical Engineering, Georgia Institute of Technology, USA. Center for Turbulence Research, Stanford Universty, USA, Georgia Institute of Technology, Flow Physics and Computational Sciences Lab, Woodruff School of Mechanical Engineering, Georgia Tech, Flow Physics and Computational Science Lab, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA, Woodruff School of Mechanical Engineering, Georgia Institute of Technology; Center for Turbulence Research, Stanford University, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA

  • Eric Johnsen

    University of Michigan