Study On Pump System Experiment And The Numerical Simulation Of Flow In The Inlet

At present.both integrate model experiment and disintegrate model experiment could be used to study pump system.The former is usually applied to get hydraulic performance. of a pump system.However,it is hard to gain and improve performance of every part,which composes pump system. so,disintegrate model experiment is used to research the inlet conduits of a pumping station.Because a pump system consists of a pump,inlet and outlet conduits,the efficiency of the pump system should be a comprehensive target including the pump efficiency and conduit efficiency.What is more,the pump system with excellent hydraulic characteristic should be contributed to by a pump with excellent hydraulic characteristic and conduits with fine flow patterns.Disintegrate model experiment is obviously convenient to compare and optimize the every part performance.In this way, the hydraulic performance of pump system could be optimized.First,physical model's energy test of the pump system is tested,hydraulic performance curve of the model pump sysytem is got.In order to kown the hydraulic characteristic of inlet,the numerical simulation of the inlet is carried on.The papers realize the numerical simulation of 3D turbulent flow in the elbow inlet and the dustpan one.compare and analyse the two designs with the some optimum object function.Then choose the better design.The numerical simulation which is used in the papers reduce the cost of the model experiment.It is universality to choose the optimum design with this method.So it can be modeled by other pump station.