A new approach in modeling of constant temperature boundary condition in thermal lattice-Boltzmann method

2012 ◽  
Vol 70 (11) ◽  
pp. 1367-1377 ◽  
Author(s):  
Mehdi Seddiq ◽  
Mehdi Maerefat ◽  
Masaud Mirzaei
Author(s):  
Joris C. G. Verschaeve

By means of the continuity equation of the incompressible Navier–Stokes equations, additional physical arguments for the derivation of a formulation of the no-slip boundary condition for the lattice Boltzmann method for straight walls at rest are obtained. This leads to a boundary condition that is second-order accurate with respect to the grid spacing and conserves mass. In addition, the boundary condition is stable for relaxation frequencies close to two.


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