@techreport{oai:jaxa.repo.nii.ac.jp:00045128,
 author = {山田, 仁 and 渡辺, 光男 and 長谷川, 敏 and 上條, 謙二郎 and YAMADA, Hitoshi and WATANABE, Mitsuo and HASEGAWA, Satoshi and KAMIJO, Kenjiro},
 month = {Aug},
 note = {An experimental investigation was carried out in order to obtain the performance characteristics of a cryogenic pump under a two-phase flow condition. The experiment used an oxygen pump with an inducer and liquid nitrogen as the test fluid. The vapor volumetric fraction at the pump inlet was calculated with an assumption of a constant enthalpy process across an orifice which was used to generate the two-phase flow at the pump inlet. The results showed that the pump head rise did hardly decrease even when the vapor fraction became about 40 percent at the pump inlet. The two-phase flow at the pump inlet was confirmed by a visual observation through a transparent plastic section. It was also found that the adiabatic efficiency for the two-phase flow provided a good agreement with the pump efficiency, which was determined by using torques, outlet flow rates and the pressure difference between the pump inlet and outlet., 資料番号: NALTR0870000, レポート番号: NAL TR-870},
 title = {極低温ポンプの二相吸込性能試験},
 year = {1985}
}