Comments by Professor A. J. Acosta and Professor G. F. Wislicenus concerning pump cavitation research are presented. They are excerpts from a contract status report by Rocketdyne Division and originated in connection with a proposed study of fluid injection around a single cavitating hydrofoil. Both commentators question very strongly the value of such tests for present day pump cavitation research. Professor Acosta points out in particular the general ineffectiveness of fluid injection as a means for cavitation control. As an extension to his comment, a theoretical analysis, previously advanced by Professor Acosta, for the flow in a cavitating cascade is added. Professor Wislicenus discusses in detail three-dimensional effects in pump cavitation and suggests also ways for attacking the associated problems.
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