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Abstract: The
effect of boundary layer on the erosion wear cause of the pump blade is
analyzed . Studies accept that wavy wear trace for blade face is a brand
of the ready-ordered structure of abrupt vortex in turbulent boundary
layer. Evolutional rule of wear trace wavelength and wave hollow from
calculation of boundary layer parameter are deduced. A new thread of
researches in erosion wear is provided .
Key words: Boundary layer Abrupt vortex Erosion wear Wear trace
CLC No: TG489
湖南省教育厅资助项目(99C154).
Received 20010814, received in revised form 20011128
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