This review addresses the current state of research into active control and suppression of
vortex rope in hydroturbines under off-design operating conditions. Only active control …

Cavitation is a quasi-periodic process, and its non-stationarity leads to increasingly complex
flow field structures. On the other hand, characterizing the flow field with greater precision …

An experimental study of the cavitation flow around the National Advisory Committee for
Aeronautics 0012 hydrofoil with different surface morphology was carried out in this work …

The existence of vortex ropes inside the draft tube significantly impacts hydraulic efficiency
and operational stability, and few studies on the formation mechanism of vortex ropes and …

The paper presents the results of a cavitation in a slit channel study and offers an analytical
description of cavity development. Special emphasis was placed on examining partial …

Hydropower is a widely used source of RE worldwide, and understanding the operating
performance of its components is essential for its optimal utilization. Francis turbines are the …

The flow in the draft tube of the water turbine is affected by the upstream flow and the
inherent structure accompanied by various undesirable characteristics, affecting the efficient …

The application of machine learning to solve engineering problems is in extremely high
demand. This article proposes a tool that employs machine learning algorithms for …

Unstable flows in the runner of water turbines, such as reverse flow, vorticity and flow
direction transition, are the main factors causing increased losses and decreased efficiency …

为提高水轮机运行性能, 该研究首先采用SST k-ω 湍流模型探讨混流式水轮机多工况运行转轮内
流特性, 并基于流固耦合方法研究0.35Qr, Qr (Qr 为设计工况), 1.09Qr 工况下的结构场特性 …