Abstract: Francis turbine working at off-design operating condition experiences high swirling flow at the runner outlet. In the present study, a high head model Francis turbine was experimentally investigated during load rejection, ...

Abstract: Detailed heat transfer and flow field investigations behind a surfacemounted slitted trapezoidal rib have been performed using liquid crystal thermography (LCT) and particle image velocimetry (PIV). In the accomplished ...

Abstract: The penetration of intermittent wind and solar power to the grid network above manageable limits disrupts electrical power grids. Consequently, hydraulic turbines synchronized to the grid experience total load rejection ...

Abstract: Experimental and numerical studies on a high head model Francis turbine were carried out over the entire range of turbine operation. A complete Hill diagram was constructed and pressuretime measurements were performed at ...

Abstract: 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 operates under noload conditions prior to ...