A two-dimensional multimaterial ALE method for compressible flows using coupled volume of fluid and level set interface reconstruction

IF 1.7 4区工程技术 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

International Journal for Numerical Methods in Fluids Pub Date : 2023-08-03 DOI:10.1002/fld.5230

Jian Cheng, Fan Zhang

引用次数: 0

Abstract

In this work, we present a two-dimensional multimaterial arbitrary Lagrangian–Eulerian (ALE) method for simulating compressible flows in which a novel coupled volume of fluid and level set interface reconstruction (VOSET) method is developed for interface capturing. The VOSET method combines the merits of both the volume of fluid method and the level set method by using a geometrical iterative operation. Compared to the original VOSET method, the novel VOSET method proposed in this work further improves the accuracy and fidelity in interface reconstruction procedure, especially in under-resolved regions. Several typical two-dimensional numerical experiments are presented to investigate the effectiveness of the proposed VOSET method and its performance when coupling with the multimaterial ALE solver. Numerical results demonstrate its good capability in capturing material interfaces during the simulation of compressible two-material flows.

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基于流体体积和水平集界面耦合重建的可压缩流二维多材料ALE方法

在这项工作中，我们提出了一种用于模拟可压缩流的二维多材料任意拉格朗日-欧拉（ALE）方法，其中开发了一种新的耦合流体体积和水平集界面重建（VOSET）方法用于界面捕获。VOSET方法通过使用几何迭代运算，结合了流体体积法和水平集法的优点。与原始的VOSET方法相比，本工作中提出的新VOSET方法进一步提高了界面重建过程的准确性和保真度，尤其是在分辨率不足的区域。通过几个典型的二维数值实验，研究了所提出的VOSET方法的有效性及其与多材料ALE求解器耦合时的性能。数值结果表明，在模拟可压缩双材料流动过程中，它具有良好的捕捉材料界面的能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal for Numerical Methods in Fluids 物理-计算机：跨学科应用

CiteScore

3.70

自引率

5.60%

发文量

111

审稿时长

8 months

期刊介绍： The International Journal for Numerical Methods in Fluids publishes refereed papers describing significant developments in computational methods that are applicable to scientific and engineering problems in fluid mechanics, fluid dynamics, micro and bio fluidics, and fluid-structure interaction. Numerical methods for solving ancillary equations, such as transport and advection and diffusion, are also relevant. The Editors encourage contributions in the areas of multi-physics, multi-disciplinary and multi-scale problems involving fluid subsystems, verification and validation, uncertainty quantification, and model reduction. Numerical examples that illustrate the described methods or their accuracy are in general expected. Discussions of papers already in print are also considered. However, papers dealing strictly with applications of existing methods or dealing with areas of research that are not deemed to be cutting edge by the Editors will not be considered for review. The journal publishes full-length papers, which should normally be less than 25 journal pages in length. Two-part papers are discouraged unless considered necessary by the Editors.