Since the birth of the first prototype of the modern reaction turbine, cavitation as conjectured by Euler in 1754 always presents as a challenge. Following his theory, the evolution of modern reaction (Francis and Kaplan) turbines has been completed by adding the final piece of the element 'draft-tube' that enables turbines to explore water energy at efficiencies of almost 100%. However, during...

Korto’s multidimensional method for vibro-acoustical diagnostics and monitoring of turbine cavitation is based on a high number spatially distributed sensors the signal data processing that systematically utilises three dimensions: spatial, temporal, operational. The delivers unbiased intensity rich diagnostical mechanisms. It applicable Kaplan, Francis, bulb, reversible pump turbines, as well ...