TY - JOUR
T1 - Lattice Boltzmann simulations of homogeneous isotropic turbulence
AU - Abdel Kareem, Waleed
AU - Izawa, Seiichiro
AU - Xiong, Ao Kui
AU - Fukunishi, Yu
N1 - Funding Information:
Acknowledgments. This research was supported by Czech Ministry of Education, Youth and Sports through the Czech National Corpus project (LM2015044). A part of the computational resources used in our experiments were provided by the CES-NET project (LM2015042). Both projects are part of the programme Large Research, Development, and Innovations Infrastructures.
PY - 2009/9
Y1 - 2009/9
N2 - The Lattice Boltzmann Method (LBM) with a forcing scheme is used to simulate homogeneous isotropic turbulence, and the resolutions of 1283 and 2563 are compared. Two models, D3Q15 and D3Q19, are used in the investigation. Results demonstrate that the Lattice Boltzmann Method can capture important features of turbulence such as the vortex-like tubes and the Kolmogorov -5/3 power spectrum. Visualization of the elongated vortices using the high rotational identification method, Q, is also presented. For 2563, a longer range of the Kolmogorov -5/3 slope can be observed than in the case of 1283 grid points. As the resolution increases, the turbulence characteristics of the flow are found to become similar to those obtained in studies by the spectral method regardless of which model is used.
AB - The Lattice Boltzmann Method (LBM) with a forcing scheme is used to simulate homogeneous isotropic turbulence, and the resolutions of 1283 and 2563 are compared. Two models, D3Q15 and D3Q19, are used in the investigation. Results demonstrate that the Lattice Boltzmann Method can capture important features of turbulence such as the vortex-like tubes and the Kolmogorov -5/3 power spectrum. Visualization of the elongated vortices using the high rotational identification method, Q, is also presented. For 2563, a longer range of the Kolmogorov -5/3 slope can be observed than in the case of 1283 grid points. As the resolution increases, the turbulence characteristics of the flow are found to become similar to those obtained in studies by the spectral method regardless of which model is used.
KW - Forced isotropic turbulence
KW - Lattice Boltzmann
KW - Vortical structures
UR - http://www.scopus.com/inward/record.url?scp=67650565706&partnerID=8YFLogxK
U2 - 10.1016/j.camwa.2009.02.002
DO - 10.1016/j.camwa.2009.02.002
M3 - 学術論文
AN - SCOPUS:67650565706
SN - 0898-1221
VL - 58
SP - 1055
EP - 1061
JO - Computers and Mathematics with Applications
JF - Computers and Mathematics with Applications
IS - 5
ER -