we need to caculate the interaction fore as we use the shan-chen mode to simulate the single component multiphase flows. When x+e is outside the fluid domain,then how to determain the interaction potential ? I need your kind help and best regards
If it’s out of domain you can keep the same interaction potential G but you need specify the densities at those points (it depends either it’s wall or periodic boundary condition). If it’s wall when you will control the contact angle by specifying densities, if it’s periodic BC - you don’t have any special situation.