A lattice Boltzmann approach for free-surface-flow simulations on non-uniform block-structured grids
A lattice Boltzmann approach for free-surface-flow simulations on non-uniform block-structured grids
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DOI：
10.1016/j.camwa.2009.08.064
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发表时间：
2010-04-01
影响因子：
2.9
通讯作者：
Krafczyk, Manfred
中科院分区：
文献类型：
--
作者：
Janssen, Christian;Krafczyk, Manfred
在本文中，我们提出了一种基于流体体积的混合算法来模拟自由表面流动问题。流场的求解采用格子Boltzmann方法。用经典的有限体积法离散了流体体积(VOF)填充水平的附加平流方程。在界面重建方面，实现了三维的分段线性界面重建。自由面跟踪算法被嵌入到基于格子Boltzmann的3D求解器VIRTUALFLUIDS中；Freudiger等人。(2009)[1]，弗洛伊迪格(2009)[2]。用著名的对流测试算例对该算法进行了验证。为了验证自由面算法的有效性，我们给出了一个溃坝基准的模拟。(C)2009爱思唯尔有限公司。保留所有权利。
In this paper, we present a hybrid volume-of-fluid-based algorithm for the simulation of free-surface-flow problems. For the solution of the flow field, the lattice Boltzmann method is used. The additional advection equation for the volume-of-fluid (VOF) fill level is discretized with a classical finite volume method. For the interface reconstruction, a piecewise linear interface reconstruction in 3D has been implemented. The free-surface-tracking algorithm is embedded into the 3D, non-uniform, lattice-Boltzmann-based solver VIRTUALFLUIDS; Freudiger et al. (2009)[1], Freudiger (2009)[2]. The advection algorithm is verified and validated with well-known advection test cases. For the validation of the free-surface algorithm, we present simulations of a breaking-dam benchmark. (C) 2009 Elsevier Ltd. All rights reserved.