液体运动微分方程在叶片泵理论中的应用

本文从水泵有限叶片的真实性出发,假定叶槽宽度不大,讨论的介质为不可压缩的理想液体,其相对运动近似为稳定流(w/y)0的条件下,采用“液体运动微分方程”导证基本能量公式,它与用传统的动量矩原理导证方法相比,能较完满的解释叶槽内产生反旋现象的原因,同时,可以与叶片泵有关基本理论(如相对运动方程、汽蚀运动方程等)紧密结合。

The useaga of in blade pump principle

This paper based on the real condition that the pump tave finite number of impeller blades.supposed that the uidth of flume is small, the medium that we discussed is non - compressible ideal liquid, and its relative motion approximates to steady flow( 0) . the auther inferred the fundamental energy formula by using "differential equation of liquid motion" . Compare wwith the traditional principle of moment of momentum,we can satisfactorily explain the reason uhy the flume produce the reversed deey phenomenon,and at the same time,we can closely combine uitlo fundamental equations.For example,relative motion equation,gas equation of state.