Dear developers and OpenLB community,
My simulation is obstacle movement in still fluid, the grometry was imported via .stl file. The material number corresponding to the surface of the obstacle is 3, and the inside of obstacle is 0(which is hollow,do nothing).
When I set BouzidiVelocityBoundary for material 3(surface of obstacle), it worked.However,the inside of obstacle (material 0) did’t move at all,then error happened.
How could I achieve the surface and inside of obstacle move together ?
Best,
GreenBee.