Modeling and Simulation of Check/Flap Valve Used in Micropump Applications

Check/flap and fixed geometry or diffuser/nozzle valves are being used in micropump applications to direct the flow in the preferred direction. Out of these two types, the check valves are preferred due their advantages with respect to the flow rate and the pressure. The Fluid Structure Interaction (FSI) module was employed to simulate the check valve. The effect of inlet pressure on the flap valve displacement and flow rate was studied. The range of inlet pressure considered was 5–40 mbar. The study results reveal that the displacement of the flap valve and flow rate increase with increase in the inlet pressure.