Mitsubishi Heavy Industry
Mitsubishi Heavy Industry
Mitsubishi Heavy Industry
Mitsubishi Heavy Industry
Mitsubishi Heavy Industry
University of Tokyo
Japan Aerospace Exploration Agency(JAXA)
出版者（英）
American Institute of Aeronautics and Astronautics (AIAA)
発行年
2014-07
会議概要（会議名, 開催地, 会期, 主催者等）（英）
50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference（July 28-30, 2014.), Cleveland, OH, United States.
抄録（英）
Helium solubility in propellant causes pressure drop in tank for bipropellant system.
There is a restriction that tank pressure is controlled in narrow range limited by maximum
design pressure of a component and minimum thrust to control attitude. Tank pressure
decreases with helium solubility for some tens day after tank pressurization on the ground.
It is necessary to predict the pressure drop. Analytical solubility model has been developed
as prediction method of the pressure drop. The prediction corresponds to the data of Apollo
and some satellites. However, the conventional model was assumed that the tank was static.
In H-II Transfer Vehicle (HTV), propellant sloshing occurred by movement of HTV between
buildings on the ground. Tank pressure drop of HTV could not be predicted by the
conventional model because of the sloshing. This research presents numerical solubility
model which expresses the influence of sloshing on helium solubility with solving distribution
of helium concentration.
HTV Numerical Simulation Model of the Helium Solubility in the Propellant
