Accession Number : AD0703256

Title :   CAVITATION EROSION IN NON-AQUEOUS LIQUIDS.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA INST OF TECH PASADENA DIV OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s) : Plesset,Milton S.

Report Date : FEB 1970

Pagination or Media Count : 19

Abstract : Cavitation erosion rates in the organic liquids formamide, ethanol, acetone and glycerol are compared with the rate in distilled water. As is to be expected, these non-ionizing liquids, which are chemically less reactive with metals than water, show lower damage rates. The cavitation damage rates were also measured for solutions of these organic liquids in water and all these solutions show a monotonic decrease in going from pure water to the pure organic liquid except glycerol. The water-glycerol solutions go through a minimum damage rate for a solution with molecular ratio of glycerol to water of approximately 1 to 1. Solutions of ethanol in glycerol show a maximum in damage rate for a solution molecular ratio, glycerol/ethanol, is about 2 to 1. Qualitative differences in the cavitation bubble cloud in the various liquids studied are indicated by short exposure photographs. (Author)

Descriptors :   (*ALUMINUM, *CORROSION), (*EROSION, *CAVITATION), FORMAMIDES, ETHANOLS, ACETONES, GLYCEROLS, WATER, DAMAGE, SOLUTIONS(MIXTURES)

Subject Categories : Physical Chemistry
      Properties of Metals and Alloys
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE