A Characteristic Boundary Condition for Multispeed Lattice Boltzmann Methods
作者机构：University of WuppertalGausstrase 2042119 WuppertalGermany Eindhoven University of Technology5600 MB EindhovenThe Netherlands
出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)
年 卷 期：2023年第33卷第1期
页 面：101-117页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
主 题：Characteristic boundary condition non-reflective boundary conditions local onedimensional inviscid boundary conditions lattice Boltzmann method multispeed high order models
摘 要：We present the development of a non-reflecting boundary condition,based on the Local One-Dimensional Inviscid(LODI)approach,for Lattice Boltzmann Models working with multi-speed *** test and evaluate the LODI implementation with numerical benchmarks,showing significant accuracy gains with respect to the results produced by a simple zerogradient *** also implement a simplified approach,which allows handling the unknown distribution functions spanning several layers of nodes in a unified way,still preserving a comparable level of accuracy with respect to the standard formulation.
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