Does anyone know whether the Zou/He boundary condition in the “cylinder.m” from the LBMethod.org website works for the problem of a 2D moving disk in low Reynolds channel flow?
For example, based on Ladd’s or ALD’s method of treating moving particles in LBM, can I simply specify the unknown populations at inlet and outlet using the Zou/He boundary condition and fix the particle position until the flow around the rest 2D disk reaches the steady state, after which the disk is allowed to move on the lattice?
In addition, could anyone give me some hint on how to initialize the flow field for such suspension flow? Should I use zero velocity for the flow field everywhere except the inlet and outlet at time zero or the normal Poiseuille profile for the flow field?
Thanks in advance.