Cavitation Instability in Subcooled Liquid Nitrogen Nozzle Flows

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概要

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• Subcooled cryogenic fluids are used in many fields such as a propellant for liquid propulsion rocket systems and a coolant for superconducting systems. However, the fundamental characteristics of subcooled cryogenic cavitating flows have not been clarified. Therefore, a visualization experiment for a cryogenic cavitating flow passing through a converging-diverging nozzle was carried out with liquid nitrogen in the subcooled condition. The results indicate that the cavitation instability is caused by the intersection of the speed of sound in a gas-liquid two-phase flow with the required velocity for cavitation inception and cavitation conservation.

• 一般社団法人 日本機械学会の論文

著者

• Ohira Katsuhide

  Institute Of Fluid Science Tohoku University

• Oike Mamoru

  Department of Mechanical Engineering, Ishinomaki Senshu University

• NIIYAMA Kazuki

  Graduate School of Mechanical Engineering, Tohoku University

• NOZAWA Masakazu

  Institute of Fluid Science, Tohoku University

関連論文

• Development of a Waveguide-Type Flowmeter Using a Microwave Method for Slush Hydrogen(Experimental Mechanics in Heat and Fluid Flow)
• Robustness of Cryogenic Hybrid Journal Bearings
• Cavitation Instability in Subcooled Liquid Nitrogen Nozzle Flows

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