G607 Numerical simulation of flow in high Reynolds number region using quasi-equilibrium lattice Boltzmann model : Effect of the ratio of bulk viscosity to kinematic viscosity

2012 ◽  
Vol 2012 (0) ◽  
pp. 537-538
Author(s):  
Takahiro YASUDA ◽  
Hisato MINAGAWA ◽  
Tomohisa HASHIMOTO ◽  
Itaru TANNO ◽  
Yoshihiro TANAKA ◽  
...  
2015 ◽  
Vol 789-790 ◽  
pp. 398-402
Author(s):  
N. Mahfoud Sahraoui ◽  
Samir Houat ◽  
Nawal Saidi

In this work, a contribution to the modeling and numerical simulation of mixed convection in a horizontal channel heated from below is presented. The lattice Boltzmann model with double thermal populations (TLBM) is used with the D2Q9 model for the dynamic field and D2Q5 for the thermal field. A comparison of the results obtained by the lattice Boltzmann model with those of the literature is presented for an area stretching ratio B = H / L = 20, a Reynolds number Re = 10, Rayleigh Ra = 104 and Peclet number Pe = 20/3. The streamlines and isotherms are presented for different periods of flow.


2020 ◽  
Vol 38 (1) ◽  
pp. 77-91
Author(s):  
Hamidreza Rahimi ◽  
Xiaonan Tang ◽  
Yaser Esmaeeli ◽  
Ming Li ◽  
Alireza Pourbakhtiar

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