Author : S. Khurana, Navtej , Hardeep Singh

Cavitation is an important problem in hydraulic machines that negatively affects their performance and may cause damages. Cavitation is a phenomenon which manifests itself in the pitting of the metallic surfaces of turbine parts because of the formation of cavities. In the present paper, a brief description of the general features of cavitation phenomenon is given and also discussed about the Thoma’s Cavitation factor. Based on the literature survey various aspects related to cavitation in hydro turbines have been discussed briefly.

Key words: Cavitation; Hydraulic Machine; Impulse Turbine; Blades; Erosion.

Article published in International Journal of Current  Engineering  and Technology, Vol.2,No.1 (March- 2012)