高温高圧水タンネル実験によるキャビティ内温度計測

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タイトル別名
  • Temperature Measurement inside a Cavity in High Temperature and High Pressure Water Tunnel
  • コウオン コウアツスイ タンネル ジッケン ニ ヨル キャビティ ナイ オンド ケイソク

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抄録

Thermodynamic effect of cavitation is a favorable effect for pumps, in which cavity volume is suppressed and available net positive suction head of the pump will be improved. When evaporation occurs in low pressure region inside the pump, local temperature is decreased by the latent heat, the local saturated pressure decreases, then the cavity is suppressed. The thermodynamic effect is known to appear when the main stream temperature closes to critical temperature of the fluid. In institute of fluid science of tohoku university, in order to clarify the basic characteristics of the thermodynamic effect of cavitation, high temperature and high pressure water tunnel is constructed, in which the main stream temperature can be increased to 140°C. And a high accuracy measuring technique of temperature inside a cavity is developed in the present study.

収録刊行物

  • ターボ機械

    ターボ機械 43 (3), 177-184, 2015

    一般社団法人 ターボ機械協会

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