1. Numerical Simulation on Liquid Hydrogen Chill-Down Process of Vertical Pipeline
- Author
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Umemura, Yutaka, Himeno, Takehiro, Kinefuchi, Kiyoshi, Saitoh, Yasuhiro, Hartwig, Jason W, Hauser, Daniel M, Sakowski, Barbara, Johnson, Wesley L, Leclair, Andre C, and Fukasawa, Osamu
- Subjects
Fluid Mechanics And Thermodynamics - Abstract
In order to improve the cryogenic propellant management technologies for a liquid hydrogen rocket with high specific impulse, JAXA, the University of Tokyo, and the NASA Glenn Research Center have jointly organized a multi-agency model validation collaboration project. As part of this project, JAXA's boiling simulation was validated with NASA's experimental data on vertical pipeline chill-down. Simulation results were in good agreement with the experimental data obtained using an improved boiling model to reproduce the spray flow. This activity achieved liquid hydrogen turbo-pump simulation at JAXA for grasping the boiling flow phenomenon from engine cut-off to re-ignition. This joint research resulted in an international cooperative relationship for discussing the cryogenic propellant management technologies necessary to develop next-generation liquid rockets.
- Published
- 2019