Axial Flow Gas Mixing Pump And A Single Compression Level Impeller Cfd Simulation

At first, the thesis introduced the status of this pump in oilfield, the existing condition at home and abroad and the theory of the two-phase flow. This paper shows a numerical simulation of the three-dimensional fluid flow of the single state of the gas-oil multiphase pump by an unsteady calculation and using the sliding mesh technique to take into account the rotating-static impeller interaction. Reference information for the improvement of the pump can be obtained by the analysis of the flowof gas-oil in the channel of pump.The oil-gas transport pump, which serves as main tool for multiphase transportation in oilfield, may both increases the product for developed oilfield and reduces the investment for developing oilfield Therefore, more and more scientists give their attention to the research for this kind of pump and make it to be a hotspot in multiphase transportation; The impeller, as one of the most important component in the pump, has significant influence on the performance of the pump, so the research of it has high significance.Totally saying, this type of pump, such as YQH-100 is a successful design but there is still plenty of researching work to do.