TY - JOUR
T1 - On the Comparison Between Lattice Boltzmann Methods and Spectral Methods for DNS of Incompressible Turbulent Channel Flows on Small Domain Size
AU - Li , Liren
AU - Shi , Yipeng
AU - Zhang , Shengqi
AU - Wang , Lian-Ping
AU - Xia , Zhenhua
JO - Advances in Applied Mathematics and Mechanics
VL - 3
SP - 598
EP - 607
PY - 2019
DA - 2019/01
SN - 11
DO - http://doi.org/10.4208/aamm.2018.s04
UR - https://global-sci.org/intro/article_detail/aamm/12983.html
KW - Lattice Boltzmann method, Spectral method, turbulent channel flows.
AB - <p style="text-align: justify;">The paper presents a study of the influence of the domain size and LBM collision models on fully developed turbulent channel flows. The results using spectral method show that a smaller domain size will increase the velocity fluctuations in the streamwise direction. And MRT-LBM with different collision models gives reliable results at least for low order flow statistics compared with those from spectral method and finite-difference method.</p>