Cavitation Inception on Rough Bodies 



two-dimensional triangular roughness elements. Weld spatterings and barnacles 

 are similar to the three-dimensional cylinders and cones. Plate buckling or 

 poor forming of a hydrofoil or propeller blade would tend to change the pres- 

 sure distribution and degrade the cavitation parameters of the hydrodynamic 

 body. Small scratches and nicks on hydrofoil propeller blades can be very 

 critical because these bodies operate at high speed and the boundary layers 

 are thin. 



REFERENCES 



1. Holl, J.W., and Wislicenus, G.F., "Scale Effects on Cavitation," Transac- 

 tions of the ASME, Journal of Basic Engineering D83:386-398 (Sept. 1961) 



2. McCormick, B.W., Jr., "On Cavitation Produced by a Vortex Trailing 

 From a Lifting Surface," Transactions of the ASME, Journal of Basic 

 Engineering D84:369-379 (Sept. 1962) 



3. Benson, B.W., "Cavitation Inception on Three-Dimensional Roughness Ele- 

 ments," David Taylor Model Basin Report 2104, May 1966 



4. Holl, J.W., "The Inception of Cavitation on Isolated Surface Irregularities," 

 Transactions of the ASME, Journal of Basic Engineering D82:169-183 (Mar. 

 1960) 



5. Holl, J.W., "The Estimation of the Effect of Surface Irregularities on the 

 Inception of Cavitation," paper presented at the ASME Annual Meeting, 

 Chicago, 111., Nov. 7-11, 1965 



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