A method for capturing sharp fluid interfaces on arbitrary meshes
A method for capturing sharp fluid interfaces on arbitrary meshes
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DOI：
10.1006/jcph.1999.6276
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发表时间：
1999-07-20
影响因子：
4.1
通讯作者：
Issa, RI
中科院分区：
文献类型：
--
作者：
Ubbink, O;Issa, RI
本文介绍了一种在任意拓扑网格上精确捕获流体界面的高分辨率方法。它基于有限体积技术，是完全保守的。界面的运动由一个相位指示器的标量输运方程的解来跟踪，该相位指示器在界面处不连续，在其他地方均匀；不需要显式的接口重建，这被认为是难以实现非结构化网格。该方法的新颖之处在于高分辨率离散化方案的自适应组合，在保持场的有界性的同时保证了界面的清晰度和形状。这种特殊的隐式实现使其适用于非结构化网格，并对非结构化网格进行了扩展。该方法能够处理界面破裂和聚并。本文概述了CICSAM的方法及其对学术测试用例的验证，以验证其准确性。(C) 1999学术出版社。
The paper describes a high resolution method (CICSAM) for the accurate capturing of fluid interfaces on meshes of arbitrary topology. It is based on the finite-volume technique and is fully conservative. The motion of the interface is tracked by the solution of a scalar transport equation for a phase-indicator held that is discontinuous at the interface and uniform elsewhere; no explicit interface reconstruction, which is perceived to be difficult to implement on unstructured meshes, is needed. The novelty of the method lies in the adaptive combination of high resolution discretisation schemes which ensure the preservation of the sharpness and shape of the interface while retaining boundedness of the field. The special implicit implementation presented herein makes it applicable to unstructured meshes and an extension to such grids is presented. The method is capable of handling interface rupture and coalescence. The paper outlines the methodology of CICSAM and its validation against academic test cases used to verify its accuracy. (C) 1999 Academic Press.