G051014 Investigation of the tank pressure change caused by sloshing of liquid nitrogen

Abstract

For the prediction of heat transfer coupled with sloshing phenomena in the propellant tanks of launch vehicle, the pressure drop induced by heat transfer and the dynamic motion of cryogenic liquid in sub-scale vessels were experimentally observed. The correlation between the pressure drop and liquid motion was confirmed in the experiment. Results of the test suggests that pressure is sensitive when gaseous species are same as liquid. In addition, even if a gaseous temperature is different (about 3 OK), the amount of pressure drop does not change.