熱力学的効果がインデューサの吸込性能とキャビテーション不安定に与える影響(流体工学,流体機械)

概要

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In the present study, we focused on the length of the tip cavitation as a cavitation parameter for experimental investigations of the thermodynamic effect on a cavitating inducer. Comparison of the length of tip cavity in liquid nitrogen (76K and 80K) with that in cold water (296K) allowed us to estimate the strength of the thermodynamic effect. In addition, unstable cavitation phenomena occur when the cavity length develops over the throat. Sub-synchronous rotating cavitation appears both in liquid nitrogen and in cold water. In contrast, cavitation surge appears only in cold water at a lower cavitation number. From these experimental results, thermodynamic effects on cavitation performances and cavitation instabilities were discussed.
社団法人日本機械学会の論文
2007-01-25