空化对流体管路瞬态特性影响分析

空化（或称气穴）是流体系统中常见的现象，它显著地影响着流体管路的瞬态特性。考虑气体在液体工作介质中溶解和析出以及液体介质自身气化，建立相应的流体属性模型，计算不同压力下流体的等效密度及体积模量；同时以一维管道瞬变流理论为基础，考虑流体系统中的空化及气泡溃灭，采用有限差分法计算流体管路锤击过程中的压力脉动。求得的结果与真实物理现象较为接近，能够为流体系统的设计提供依据和参考。

Effect of Cavitation on the Transient Characteristics of Fluid Pipeline

Cavitation is a general phenomenon in fluid systems.It has an obvious effect on the transient characteristics of the fluid system.Cavitation model is taken into account for simulation of fluid systems,fluid properties such as density and bulk modulus are calculated in different pressures.The analytical models are developed by using the hammer and one-dimension fluid transient theory based on the finite difference method,in consideration of the cavitation,release and collapse of bubbles.The results are much ...