Abstract: In this study, a reciprocatingtype water turbine model that applies the principle of the WeisFogh mechanism was proposed, and the model's unsteady flow field was calculated by an advanced vortex method. The primary conditions ...

Abstract: Large eddy simulation (LES) approach was used to investigate jumps of primary frequency of shear layer flow over a cavity. Comparisons between computational results and experimental data show that LES is an appropriate ...

Abstract: Frequent changes in the operating modes pose significant challenges in the development of a pump-turbine with high efficiency and stability. In this paper, two pump-turbine runners, one with a large positive blade lean and ...