Event Details

A jet pump is based on the principle of momentum exchange and entrainment between two fluids, called the motive and suction fluid. The motive fluid, compressed air, is injected into a pump bore through multiple discrete nozzles. The nozzles convert the pressure energy into kinetic energy in the form of expanding jet of air, which entrains and pumps the suction fluid.

For this study, experiments and computational fluid dynamics (CFD) simulations are performed on two jet pumps, which are considered as single-phase, using compressed air to move ambient atmospheric air. Experimentally verifiable CFD based design optimisation can then be used to examine the effect of various pump geometries. For this study, the geometry of the nozzles within the pump are examined, observing the effect on the induced flow and determining optimal efficiency. Using CFD, based design optimisation reduces the need for extensive product development and testing.