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Affiliation of Author(s):材料科学与技术学院

Journal:JOURNAL OF COMPUTATIONAL PHYSICS

Key Words:Moving interface Multiphase flow VOF THINC Level set High-order interface representation

Abstract:In this paper, we propose a simple and accurate numerical method for capturing moving interfaces on fixed Eulerian grids by coupling the Tangent of Hyperbola Interface Capturing (THINC) method and Level Set (LS) method. The innovative and practically-significant aspects of the proposed method, so-called THINC/LS method, lie in (1) representing the interface with polynomial of high-order (arbitrary order in principle) rather than the plane representation commonly used in the Piecewise Linear Interface Calculation (PLIC) Volume of fluid (VOF) methods, (2) conserving rigorously the mass of the transported VOF field, (3) being able to resolving fine interface structures under mesh resolution, and (4) providing a straightforward and easy-to-code algorithm for 3D implementation. We verified the proposed scheme with the widely used benchmark tests. Numerical results show that this new method can obtain high-order accuracy for interface reconstruction and can produce more accurate results in capturing moving interfaces compared to the classical VOF methods. (C) 2018 Elsevier Inc. All rights reserved.

ISSN No.:0021-9991

Translation or Not:no

Date of Publication:2018-11-15

Co-author:Qian, Longgen,Xiao, Feng

Correspondence Author:魏艳红,Xiao, Feng,Wei Yanhong