Abstract: This paper focuses on the generation of twin vortex rope in the draft-tube elbow of a Francis turbine at deep part-load operation through analyzing the results of model tests along with numerical simulations. Model tests, ...

Abstract: Rotating machinery plays a preponderant role in most of the industrial sectors, including, but not limited to, energy production and storage, automobile, maritime transport, aviation, and aerospace. Since the first development ...

Abstract: For seamless integration of growing electricity production from intermittent renewable energy sources, Francis turbines are under increasing demand to extend their operating range. This requires Francis turbines to operate ...