I am beginner in LBM world. I am trying to solve 2-D heat transfer problem just to gain confidence so, that I can implement this technique to complex problem. Boundary condition is east and south walls are at temperature 0 K while north and west walls are at 100 K. while applying bounce back boundary condition, I am not getting how to deal with corner control volumes. I will be grateful to you if you help me to deal with this problem.
implementation of bounce back boundary condition at corner control volume
The bounce back boundary condition for 2D corners is not needed anymore.
I suggest you to read this paper:
On pressure and corner boundary conditions with two lattice Boltzmann construction approaches
Mathematics and Computers in Simulation
Volume 84, October 2012, Pages 26–41
which also available
Thanks a lot Mecobio. I will go through this paper.