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 …

The fatigue crack growth behavior of a CA6NM weld heat affected zone (HAZ) was
investigated. Fatigue crack growth tests in river water environment were conducted on as …

The aim of the present work is to study the interaction between two loading cycles in
hydraulic turbine runners, ie baseline cycles which are the result of power output variations …

The failure of hydraulic turbine runners is a rare event. So in order to assess the reliability of
these components one cannot rely solely on the number of observed failures in a given …

The correct estimate of the lifetime of hydraulic turbines is an important part of planning the
maintenance, repair or replacement of equipment. A positive experience in hydraulic unit …

In the present paper considered is the problem of the numerical simulation of Francis turbine
runner fatigue failure caused by fluid-structure interaction. The unsteady 3D flow is modeled …

In this study, the integrity of electron beam‐(EB‐) welded CA6NM—a grade of 13% Cr‐4%
Ni martensitic stainless steel—was assessed through the entire joint thickness of 90 mm …

This article analyzes the operation of hydro generators based on the operation modes of a
hydroelectric power plant operating in the Arctic zone of the Russian Federation. The main …

The failure of hydraulic turbine runners is a very rare event. Hence, in order to assess the
reliability of these components, one cannot rely on statistical models based on the number of …

Hydropower is regarded as being a highly flexible energy source, a coveted characteristic
that is well earned by the fact that it can provide: peaking generation capabilities, balance to …