The paper presents results of numerical simulation of unsteady three-dimensional flow in the
two high-head hydraulic turbines. The numerical technique for calculating of low-frequency …

Numerical technique for calculating pressure pulsations in the high-head hydro turbines is
presented in the paper. The numerical technique is based on the use of DES turbulence …

This work investigates the unsteady pressure fluctuations and inception of vortical flow in a
hydraulic turbine during speed-no-load conditions. At speed-no-load (SNL), the available …

Water passes freely through a hydraulic turbine in the absence of power requirements or
during maintenance of the transmission lines, spillways, or dam. Moreover, the turbine …

The paper presents numerical simulation of flow in Francis-99 water turbine under three
operation modes: part load, best efficiency point and high load. Calculations were performed …

We performed numerical simulation of flow in a laboratory model of a Francis hydroturbine at
three regimes, using two eddy-viscosity-(EVM) and a Reynolds stress (RSM) RANS models …

The paper presents the numerical simulation method of three-dimensional turbulent flows in
the hydraulic turbine. This technique was verified by means of experimental data obtained …

The authors have performed numerical simulation of pressure pulsations in the draft tube of
a hydraulic turbine that are excited by large-scale vortex structures. Numerical simulation of …

Fundamentals of vortex dynamics in application to the problems of power engineering are
presented in the current presentation. Recent advances in diagnostics and simulation of …

В работе выполнено численное моделирование пульсаций давления в отсасывающей
трубе гидравлической турбины, которые возбуждаются крупномасштабными …