A Lattice Boltzmann model with high Reynolds number in the presence of external forces to describe microfluidics

2003 ◽  
Vol 40 (11) ◽  
pp. 843-851 ◽  
Author(s):  
Baoming Li ◽  
Daniel Y. Kwok
Keyword(s):  
Reynolds Number ◽  
Lattice Boltzmann ◽  
High Reynolds Number ◽  
Lattice Boltzmann Model ◽  
High Reynolds ◽  
External Forces ◽  
Boltzmann Model

Study of the Mixed Convection in a Horizontal Channel Heated from below

2015 ◽  
Vol 789-790 ◽  
pp. 398-402
Author(s):  
N. Mahfoud Sahraoui ◽  
Samir Houat ◽  
Nawal Saidi
Keyword(s):  
Numerical Simulation ◽  
Reynolds Number ◽  
Mixed Convection ◽  
Lattice Boltzmann ◽  
Thermal Field ◽  
Lattice Boltzmann Model ◽  
Horizontal Channel ◽  
Comparison Of The Results ◽  
Stretching Ratio ◽  
Boltzmann Model

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.

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