Takehiro Himeno, Daizo Sugimori, Katsutoshi Ishikawa, Yutaka Umemura, Seiji Uzawa, Chihiro Inoue, Toshinori Watanabe, Satoshi Nonaka, Yoshihiro Naruo, Yoshifumi Inatani, Kiyoski Kinefuchi, Ryoma Yamashiro, Toshiki Morito, Koichi Okita
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011 1 PartF 2011年
For the prediction of heat transfer coupled with sloshing phenomena in the propellant tanks of reusable launch vehicle, the pressure drop induced by heat transfer and the dynamic motion of liquid in sub-scale vessels were experimentally observed and numerically investigated. The correlation between the pressure drop and liquid motion was confirmed in the experiment. The mechanisms enhancing heat transfer were discussed based on the computation. It was suggested that splash and wavy surface induced by violent motion of liquid cause the pressure drop in the closed vessel. In addition, as the preliminary investigation, non-isothermal sloshing of liquid nitrogen and liquid hydrogen were successfully visualized and pressure drop depending on the gaseous species was discussed. © 2011 by Takehiro Himeno.