论文部分内容阅读
本文针对水中含沙、水中含煤粉等两相流动,以牛顿定律和质量守恒定律为基础,推导了定常不可压两相流连续方程、微分形式的两相流运动方程、定常不可压两相流能量方程,以及定常不可压两相流矢量形式的连续方程。此外,本文除应用两相流基本方程导出了多沙河流上水轮机的基本能量方程和水泵的理论扬程公式外,还分析了多沙河流上水轮机和水泵流道中两相流的特点,探讨了水轮机和水泵过流部件发生局部汽蚀及磨损破坏的机理。
In this paper, based on the Newton’s law and the law of conservation of mass, two-phase flow equation of continuous incompressible two-phase flow equation and differential form are derived for two-phase flow in sandy water and pulverized coal in water. Flow energy equation, and a continuous equation in the form of a stationary incompressible two-phase flow vector. In addition, in addition to the basic equation of two-phase flow, the basic energy equation of the turbine on the flow of the Dousha river and the theoretical lift formula of the pump are derived. The characteristics of the two-phase flow in the flow channel of the turbine and the pump in the Dousha river are analyzed. And pump overcurrent components of local cavitation and wear damage mechanism.