Cavitation is a major problem in the hydraulic reaction turbine because it damages turbine
components, affects turbine performance and increases maintenance. Hence there is a …

Hydrodynamic cavitation has been a promising method and technology in wastewater
treatment, while the principles based on the design of cavitational reactors to optimize …

In recent years, there has been an increased concern regarding the impacts of climate
change caused by the increase in anthropogenic CO 2 emissions, and the search for clean …

The hydraulic turbine in turbine mode (TMHT) with ultra-low specific speed is a new type of
energy recovery device for recovering energy stored in the high-pressure fluid. In order to …

The evaluation of cavitation characteristics is one of the most significant tasks whilst properly
designing a water turbine. This work investigates the steady and unsteady cavitating flows …

In off-design conditions, pump-turbines generate vortex structures of varying scales and
intensities, jeopardizing energy conversion due to unstable flow phenomena. While off …

The health of the hydroelectric generator determines the safe, stable, and reliable operation
of the hydropower station. In order to keep the hydroelectric generator in a better state of …

We report on the experimental study of a precessing vortex core (PVC) in an air model of a
Francis turbine. The focus is placed on the modal decomposition of the PVC that occurs in …

This study aims to provide a comprehensive assessment of single-objective and multi-
objective optimisation algorithms for the design of an elbow-type draft tube, as well as to …

Hydropower is considered to be an important way to achieve the sustainable development
goal of human progress. The performance of turbines is very important to the safety and …