Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations

被引：1
|
作者：
Feldhusen, Kai [1 ,2 ]
Deiterding, Ralf [1 ]
Wagner, Claus [1 ,2 ]
机构：
[1] German Aerosp Ctr DLR, Inst Aerodynam & Flow Technol, Bunsenstr 10, D-37073 Gottingen, Germany
[2] Tech Univ Ilmenau, Inst Thermo & Fluiddynam, D-98693 Ilmenau, Germany
来源：
2015 SECOND INTERNATIONAL CONFERENCE ON MATHEMATICS AND COMPUTERS IN SCIENCES AND IN INDUSTRY (MCSI) | 2015年
关键词：
Lattice Boltzmann method; thermal convection; adaptive mesh refinement; NAVIER-STOKES EQUATION; CYLINDER; MODEL;
D O I：
10.1109/MCSI.2015.60
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Utilizing the Boussinesq approximation, a double-population thermal lattice Boltzmann method (LBM) for forced and natural convection in two space dimensions is developed and validated. A block-structured dynamic adaptive mesh refinement procedure tailored for LBM is applied to enable computationally efficient simulations of high Rayleigh number configurations which are characterized by a large scale disparity in boundary layers and free stream flow. As test cases, the analytically accessible problem of a two-dimensional (2D) forced convection flow through two porous plates and the non-Cartesian configuration of a heated rotating cylinder are considered. The effectiveness of the overall approach is demonstrated for the 2D natural convection benchmark of a cavity with differentially heated walls at Rayleigh numbers from 10(3) up to 10(8).
引用
收藏
页码：199 / 206
页数：8
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