The numerical simulation based on CFD of hydraulic turbine pump

[摘要] As the functions of hydraulic turbine pump including self-adjusting and compensation with each other, it is far-reaching to analyze its internal flow by the numerical simulation based on CFD, mainly including the pressure field and the velocity field in hydraulic turbine and pump.The three-dimensional models of hydraulic turbine pump are made by Pro/Engineer software;the internal flow fields in hydraulic turbine and pump are simulated numerically by CFX ANSYS software. According to the results of the numerical simulation in design condition, the pressure field and the velocity field in hydraulic turbine and pump are analyzed respectively .The findings show that the static pressure decreases systematically and the pressure gradient is obvious in flow area of hydraulic turbine; the static pressure increases gradually in pump. The flow trace is regular in suction chamber and flume without spiral trace. However, there are irregular traces in the turbine runner channels which contrary to that in flow area of impeller. Most of traces in the flow area of draft tube are spiral.

[发布机构] National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu; 212013, China^1

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] ANSYS software;Internal flow field;Internal flows;Pressure field;Simulation in designs;Static pressure;Three-dimensional model;Turbine runner