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基于非结构化网格有限体积的LBM

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2012-01-01

Journal: 大连理工大学学报

Included Journals: CSCD、ISTIC、PKU、EI、Scopus

Volume: 52

Issue: 6

Page Number: 809-815

ISSN: 1000-8608

Key Words: 非结构化网格; 有限体积法

Abstract: 提出了一种基于非结构化网格有限体积的LBM.采用Cell-vertex有限体积法离散控制方程.该方法在时间上采用伪、实二时间步,其中伪时间步采用
   向前差分,实时间步采用二阶向后差分方法;空间上采用edge-based通量计算方法,采用高阶TVD格式计算控制体边界通量.离散后的控制方程采用隐
   式迭代,控制变量采用五层二阶Runge-Kutta方法求解.二维同心圆环内圆柱间Couette流与顶盖驱动方腔流的数值结果显示该方法为一种有效求
   解不规则边界流体动力特性的实用工具.

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