In which operation should I apply the Bounce back conditions ?

Lattice Boltzmann Method LBM: Algorithms
#1

Hi,
Dear all,

I’m simulating the heat transfer in a cavity which contains two heated obstacles,
My problem is where should I add the (Thermal) bounce back condition(solid-fluid) in the stream operation or in the collision one,
More, the LBM Algorithm in oure code is in this order :

1-Initialization
2-Stream
3-Boundary conditions
4-Macroscopic proporties
5-Collision

Would you mind helping me or advising me please?

Best regards,

#2

Regular bounceback occurs instead of the collision.

Bruce

#3

Thank you so much for your reply Bruce,

Bolt,