《Journal of Computational Physics》
A hybrid particle level set method for improved interface capturing
作者:
D Enright，R Fedkiw，J Ferziger，I Mitchell
关键词:
solid mechanics；fluid dynamics；shock waves；Godunov method；elasticity；plasticity；solid-fluid coupling；adaptive mesh refinement；AMR
摘要:
In this paper, we propose a new numerical method for improving the mass conservation properties of the level set method when the interface is passively advected in a flow field. Our method uses Lagrangian marker particles to rebuild the level set in regions which are underresolved. This is often the case for flows undergoing stretching and tearing. The overall method maintains a smooth geometrical description of the interface and the implementation simplicity characteristic of the level set method. Our method compares favorably with volume of fluid methods in the conservation of mass and purely Lagrangian schemes for interface resolution. The method is presented in three spatial dimensions.
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