@techreport{oai:jaxa.repo.nii.ac.jp:00002576, author = {菊田, 研吾 and 橋本, 知之 and 島垣, 満 and 南里, 秀明 and 水野, 勉 and 吉田, 義樹 and Kikuta, Kengo and Hashimoto, Tomoyuki and Shimagaki, Mitsuru and Nanri, Hideaki and Mizuno, Tsutomu and Yoshida, Yoshiki}, month = {May}, note = {To estimate the influence of velocity on thermodynamic effect, we conducted the experiments, in which inducer rotational speed was changed in liquid nitrogen. The experiments in liquid nitrogen and in cold water allowed us to estimate the amplitude of the thermodynamic effect. In the experiment with lower rotational speed, suction performance was improved. The cavity length at lower rotational speed was shorter than that at higher one at the same cavitation number. Thus, we have confirmed that the degree of thermodynamic effect depends on the rotational speed as the suppression of cavity length. The temperature depression of liquid nitrogen was estimated from the comparison of the cavity length. We found that the amplitude of temperature depression became smaller when the rotation speed was lower. In addition, from the arrange data using the modified non-dimensional thermodynamic parameter SIGMA(sup *)(sub mod), the effect of nonlinearity of the vapor pressure/temperature curve should be considered to evaluate the thermodynamic effect especially in the case of higher temperature., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA0064647000, レポート番号: JAXA-RM-10-002}, title = {回転数がインデューサに発生するキャビテーションの熱力学的効果に与える影響}, year = {2010} }