Numerical research on the performance of natural gas ejector on two phase operation

The CFD technique was used to simulate the performance of natural gas ejector when the water droplets were injected into the induced flow. The numerical results show that the induced gas flow rate and entrainment ratio decreased with the increase of injected water flow rate. As the diameter of water droplets increased, the induced gas flow rate and decreased firstly, but when the diameter was larger than 20 μm, the value kept constant, the entrainment ratio had the same trend. This study can provide a beneficial reference for the design of supersonic ejector and widen their applications in natural gas fields in the future.