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 …

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 …

Under low flow-rate conditions, a Francis turbine exhibits precession of a vortex rope with
pressure fluctuations in the draft tube. These undesirable flow phenomena can lead to …

For applications involving very low specific speeds resulting from very low flow rates with
medium to high heads, a special class of hydraulic turbine known as Positive displacement …

Some results of experimental studies of the vortex-core reconnection phenomenon in the
flowthrough duct of a combined-flow turbine were presented. The studies were performed on …

Актуальная задача гидроэнергетики-это расширение диапазона устойчивой и надежҮ
ной эксплуатации ГЭС, в том числе в области неоптимальных режимов работы …

In the present study, we report on the results of an experimental study of pressure pulsations
in the flow duct of a medium-scale hydrodynamic bench with Francis turbine. In various …

The effect of the method of gas-phase injection into a swirled fluid flow on parameters of a
precessing vortex core is studied experimentally. Conditions of the appearance of the vortex …

ABSTRACT A large-scale double-precessing vortex in two-phase flow in a tangential
hydrodynamic vortex reactor has been studied. It has been found that air injection into the …

Работа посвящена экспериментальному исследованию закрученных однофазного и
двухфазного потоков в гоҮ ризонтальной вихревой камере с тангенциальным …