Application of shifted lattice model to 3D compressible lattice Boltzmann method  

作　　者：黄好雨 金科 李凯 郑晓静 Hao-Yu Huang;Ke Jin;Kai Li;Xiao-Jing Zheng(School of Aerospace Science and Technology,Xidian University,Xi'an 710071,China;School of Mechano-Electronic Engineering,Xidian University,Xi'an 710071,China;Shaanxi Key Laboratory of Space Extreme Detection,Xi'an 710071,China;Key Laboratory of Equipment Efficiency in Extreme Environment,Ministry of Education,Xi'an 710071,China)

机构地区：[1]School of Aerospace Science and Technology,Xidian University,Xi'an 710071,China [2]School of Mechano-Electronic Engineering,Xidian University,Xi'an 710071,China [3]Shaanxi Key Laboratory of Space Extreme Detection,Xi'an 710071,China [4]Key Laboratory of Equipment Efficiency in Extreme Environment,Ministry of Education,Xi'an 710071,China

出　　处：《Chinese Physics B》2023年第9期312-320,共9页中国物理B（英文版）

基　　金：the Youth Program of the National Natural Science Foundation of China(Grant Nos.11972272,12072246,and 12202331);the National Key Project,China(Grant No.GJXM92579);the Natural Science Basic Research Program of Shaanxi Province,China(Program No.2022JQ-028)。

摘　　要：An additional potential energy distribution function is introduced on the basis of previous D3Q25 model,and the equilibrium distribution function of D3Q25 is obtained by spherical function.A novel three-dimensional(3D)shifted lattice model is proposed,therefore a shifted lattice model is introduced into D3Q25.Under the finite volume scheme,several typical compressible calculation examples are used to verify whether the numerical stability of the D3Q25 model can be improved by adding the shifted lattice model.The simulation results show that the numerical stability is indeed improved after adding the shifted lattice model.

关 键 词：lattice Boltzmann method shifted lattice model compressible flow finite volume method 

分 类 号：O241.82[理学—计算数学]