Question

What is cavitatioin ? On what factors does the cavitation in water turbine depend?

Answer 1

Answer:

To avoid cavitation while operating Hydraulic Turbines parameters should be set such that at any point of flow static pressure may not fall below the vapor pressure of the liquid. These parameters to control cavitation are pressure head, flow rate and exit pressure of the liquid.

Answer 2

Cavitation

Cavitation mainly occurs in the case of reaction type turbines. ... Cavitation factor depends upon the specific speed of the turbine. It is important, especially in the case of Kaplan, propeller and bulb type turbines.