Erosion and Cavity Characteristics in Rotating Components

    Volume 8, Issue 3 (May 1980)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 16


    Veerabhadra Rao, P
    Tata Consulting Engineers, Carnac, Bombay,

    Syamala Rao, BC
    Assistant professor and professor, Indian Institute of Science, Bangalore,

    Lakshmana Rao, NS
    Assistant professor and professor, Indian Institute of Science, Bangalore,

    Abstract

    An investigation of the initiation and growth of erosion and of the effect of velocity and pressure on erosion in a rotating disk is presented. Also, the role of an intervening noncavitating period on erosion is studied. The results indicate that at high intensities the peak rate of erosion decreases with increases in pressure. The erosion rate/time curves obtained for metallic materials are explained by the eroded particle distribution and the cavity size. The average size of the eroded particles decreased when pressure and tensile strength of the material were increased. The erosion rate peaked after an intervening noncavitating period. The use of the rate of erosion, defined as an average over the entire test duration, in the equation governing the theory of erosion resulted in reasonably good correlations. The correlations reveal that it is possible to predict the length, width, and area of a cavity when the cavitation parameter σ is known. The normalized width of a cavity may be estimated if its normalized length is known.


    Paper ID: JTE10609J

    DOI: 10.1520/JTE10609J

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    Author
    Title Erosion and Cavity Characteristics in Rotating Components
    Symposium , 0000-00-00
    Committee G02