A Coupled Level Set and Volume of Fluid method for automotive exterior water management applications
A Coupled Level Set and Volume of Fluid method for automotive exterior water management applications
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DOI：
10.1016/j.ijmultiphaseflow.2017.01.008
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发表时间：
2017-05-01
影响因子：
3.8
通讯作者：
Garmory, A.
中科院分区：
文献类型：
--
作者：
Dianat, M.;Skarysz, M.;Garmory, A.
出于对道路车辆表面特征上的水的实际、高保真度、模拟的需要，耦合水平集流体体积（CLSVOF）方法已被实施到通用CFD代码中。它已经实现，使它可以用于非结构化和非正交网格。CLSVOF所需的接口重建步骤已经实现了使用迭代的“裁剪和封顶”算法为任意细胞形状和重新初始化算法适合于非结构化网格。在正交网格和四面体网格上成功地进行了界面捕捉的验证试验。两个宏观接触角模型已被实施，该方法被认为是给非常好的协议与实验数据的液滴撞击在平板上的正交和非正交网格。最后，在一个圆边通道的液滴的流动进行了模拟，以证明开发的方法来模拟表面流动的那种弯曲的几何形状，使得使用一个非正交的网格理想的能力。(C)2017作者爱思唯尔有限公司出版
Motivated by the need for practical, high fidelity, simulation of water over surface features of road vehicles a Coupled Level Set Volume of Fluid (CLSVOF) method has been implemented into a general purpose CFD code. It has been implemented such that it can be used with unstructured and non-orthogonal meshes. The interface reconstruction step needed for CLSVOF has been implemented using an iterative 'clipping and capping' algorithm for arbitrary cell shapes and a re-initialisation algorithm suitable for unstructured meshes is also presented. Successful verification tests of interface capturing on orthogonal and tetrahedral meshes are presented. Two macroscopic contact angle models have been implemented and the method is seen to give very good agreement with experimental data for a droplet impinging on a flat plate for both orthogonal and non-orthogonal meshes. Finally the flow of a droplet over a round edged channel is simulated in order to demonstrate the ability of the method developed to simulate surface flows over the sort of curved geometry that makes the use of a non-orthogonal grid desirable. (C) 2017 The Authors. Published by Elsevier Ltd.