吸入管位置对液体射流泵性能影响的三维模拟

Three-dimensional Simulation on Influence of Suction Pipe Location on Jet Pump Performance

为了分析射流泵内部结构对射流泵性能的影响,利用数值模拟软件Fluent对射流泵的内部流场进行了三维数值模拟。通过改变吸入管位置单一变量,研究其对射流泵性能等的影响。结果表明,吸入管位置的变化会引起射流泵内部流场的压力和速度的变化,进而引起射流泵的被吸流体的流量的变化,但对射流泵的压力比及效率影响不大。故在设计及应用中,应综合考虑,恰当地选择吸入管的位置。

To analyze the influence of internal structure numerical simulation software Fluent,a three dimensional pump＇s internal flow field. By changing the position of the jet pump on its performance ,by using numerical simulation has been done on a jet of the suction pipe, a single variable,this simulation studys its effect on jet pump performance. The resuhs show that the suction pipe position changes can cause the change of pressure and velocity on jet pump internal flow field, resulting in the change of the flow of fluid suction,but there is little influence on the pressure ratio and efficiency of jet pump. Therefore, in the design and application comprehensive consideration should be taken to choose appropriate suction pipe position.