摘要
本文先建立了固液两相流中水轮机基本方程式,并对基本方程式进行了定性分析,得到液相和固相出口速度三角形的适当组合,可以获得既具有较高能量性能,又具有较好气蚀性能的水轮机转轮;按清水条件设计的转轮,在固液两相流中运行时,其能量性能和气蚀性能均不很理想。然后系统地建立了固液两相流中水轮机的相似准则,得到了单元工作量的表达形式。
Tie hydraulic turbine equation in the solid-liquid two-phase flow has been derived in the paper. Analysing qualitatively, the runner with the higher energy characteristics and the better cavitation characteristics may be obtained by the appropriate combination between the solid-phase and the liquid-plase outlet velocity triangles. The runner designed with regard to the single-phase flow condition doesnt have the ideal energy and cavitation characteristics when it operates in the aolid-liquid flow. The hydraulic turbine similarity in the solid-liquid flow has been established, gaining the expressions of the unit values.
出处
《水动力学研究与进展(A辑)》
CSCD
北大核心
1992年第3期343-349,共7页
Chinese Journal of Hydrodynamics
关键词
水轮机
两相流
相似准则
hydraulic turbine, two-phase flow, runner, similarity, unit value, velocity triangle.