1990 Volume 33 Issue 4 Pages 629-633
In order to clarify the necessary conditions for cavitation-erosion tests with a vibratory apparatus, we carefully measure the cavitation-nuclei-size distributions and the relative air content rate of test water with respect to time by means of a Coulter counter and a van Slyke apparatus, respectively. It is found that the exponent of the distribution curve and the volume concentration of nuclei characterizing the nuclei-size distributions do not fluctuate with time during the equilibrium period, and that the relative air content rate first decreases monotonously with time and then reaches a definite equilibrium value after 40min which is longer than the 15min recommended by the ASTM.
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JSME International Journal Series A Solid Mechanics and Material Engineering
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