This paper mainly summarizes the recent progresses for the cavitation study in the hydraulic
machinery including turbo-pumps, hydro turbines, etc.. Especially, the newly developed …

Abstract Design and performance analysis of hydraulic turbines are two very crucial aspects
of any hydro power project which ensure economical and efficient functioning of these …

水轮机作为水电能源开发的核心机械装备, 其性能的优劣决定了水电能源的开发利用率.
在现代科技进步的推动下, 水轮机技术也取得了长足发展. 我国水轮机技术的发展经历了引进 …

Hydropower plants provide an asset over other renewables of production flexibility. Away
from the turbine design point; detrimental off-load instabilities may compromise the power …

The growing importance of the efficiency and operational range of pumped hydro energy
storage (PHES) installations, especially for variable load operations, calls for the use of …

This paper suggests a method of simultaneous multi-objective shape optimization of
hydraulic turbine runner and draft tube (DT) with the objective to increase turbine efficiency …

The flow in the off-design operation of a Francis turbine may lead to the formation of spiral
vortex breakdowns in the draft tube, a diffuser installed after the runner. The spiral vortex …

In recent times, optimization began to be popular in the turbomachinery field. The
development of computational fluid dynamics (CFD) analysis and optimization technology …

In this paper, we introduce a novel passive control method to mitigate the unsteadiness
effects associated to the swirling flows with self-induced instabilities. The control method …

We report on parallel experimental studies of twin vortex ropes in laboratory models of an
elbow and a conical hydroturbine draft tube focusing on the unstable cyclic switch-overs …