A comparative study of the axisymmetric lattice Boltzmann models under the incompressible limit
A comparative study of the axisymmetric lattice Boltzmann models under the incompressible limit
复制标题
不可压缩极限下轴对称格子Boltzmann模型的比较研究
DOI:
10.1016/j.camwa.2017.05.028
复制
发表时间:
2017-08
影响因子:
2.9
通讯作者:
Chew Jia Wei
中科院分区:
文献类型:
--
作者:
Zhang Liangqi;Yang Shiliang;Zeng Zhong;Chen Jie;Wang Lingquan;Chew Jia Wei
A comparative study on four axisymmetric lattice Boltzmann (LB) models, namely, the kinetic theory based model by Guo et al. (2009), the consistent model by Li et al. (2010), the centered scheme model by Zhou (2011), and our model (based on applying the centered scheme to the Guo et al. (2009) model), is conducted both theoretically and numerically. The finite difference interpretation of the LB method by Junk (2001) is applied to evaluate the accuracy of the models under the incompressible limit. Particularly, the finite difference stencils adopted for the spatial gradient terms in the macroscopic axisymmetric Navier-Stokes (N-S) equations are compared. Besides, the numerical performance (i.e., the numerical accuracy, stability and the convergence efficiency) of the models is compared by two benchmark tests, namely, the unsteady-state Womersley flow and the cylindrical cavity flow. The numerical results accord well with the theoretical analysis. Additionally, it is also found that the numerical stability of the axisymmetric LB models is effectively improved by removing the effects from the non-hydrodynamic variables.
登录
查看更多内容
影响因子:
2.9
作者:
Liangqi Zhang;Shiliang Yang;Zhong Zeng;Liping Yao;Jia Wei Chew
通讯作者:
Jia Wei Chew
影响因子:
2.8
作者:
Zheng, Chuguang;Shi, Baochang;Zheng, Lin;Guo, Zhaoli
通讯作者:
Guo, Zhaoli
影响因子:
3.7
作者:
A. Spohn;M. Mory;E. Hopfinger
通讯作者:
A. Spohn;M. Mory;E. Hopfinger
影响因子:
2.4
作者:
Zhang Liangqi;Yang Shiliang;Zeng Zhong;Chen Jie;Yin Linmao;Chew Jia Wei
通讯作者:
Chew Jia Wei
影响因子:
4.6
作者:
H. Blackburn;J. Lopez
通讯作者:
J. Lopez