Piezo driven pumps are becoming commonplace in today’s markets and FLOW-3D can easily model the physics involved. In the animation below, a void pressure is set on the back side of the piezoelectric device which is the thin horizontal component. Two valves are included using the Moving Objects Model to control the flow direction as the pump oscillates. An oscillating force is applied to move the membrane. This force can be a point source or distributed. Particles are seeded into the animation to help visualize the flow.
A simulation of a piezo-driven micro pump