J0501-4-1 ロケットエンジン用ターボポンプ試験設備における音響効果を考慮したキャビテーションサージの一次元解析 : 第3報 : キャビテーション非定常特性の周波数応答性の影響([J0501-4]流体機械の研究開発におけるEFD/CFD(4))

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This paper reports the effect of the frequency response characteristics of cavitation on cavitation surge using a one-dimensional analytical model applying the acoustic effect of the inlet pipe. The response of cavitation compliance is found to strongly affect the instability of cavitation surge, even though that of the mass flow gain factor does not so. Consequently, as the decrease of the cavitation number, the frequency response of cavitation compliance is vaired, then the cavitation surge with higher frequency becomes stabler and that with lower freqency becomes unstabler.
2010-09-04