A Peculiar Behavior of Cavitation-Nuclei-Size Distributions in Sample Water Under Vibratory Erosion Tests

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概要

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• 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.

• 一般社団法人日本機械学会の論文
• 1990-11-15

著者

• HIGUCHI Jiro

  Institute of Fluid Science, Tohoku University

• OBA Risaburo

  Institute of Fluid Science, Tohoku University

• Oba Risaburo

  Institute Of Fluid Science Tohoku University

• Oba Risaburo

  Institute Of High Speed Mechanics Tohoku University

• ITO Yukio

  Institute of High Speed Mechanics, Tohoku University

• AHMED Shemy

  Institute of Fluid Science, Tohoku University

• Ito Y

  Inst. Technol.

• Higuchi J

  Institute Of Fluid Science Tohoku University

• Higuchi Jiro

  Institute Of Fluid Science Tohoku University

• Ahmed S

  Assiut Univ. Egy

• Ahmed Shemy

  Institute Of Fluid Science Tohoku University

• Ito Yukio

  Institute Of Fluid Science Tohoku University

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