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Initiation of geyser during the resettlement of cryogenic liquid under impulsive reverse gravity acceleration in microgravity environmentThe requirement to settle or to position liquid fluid over the outlet end of spacecraft propellant tank prior to main engine restart poses a microgravity fluid behavior problem. Resettlement or reorientation of liquid propellant can be accomplished by providing optimal acceleration to the spacecraft such that the propellant is reoriented over the tank outlet without any vapor entrainment, any excessive geysering, or any other undesirable fluid motion for the space fluid management under microgravity environment. The purpose of present study is to investigate most efficient technique for propellant resettling through the minimization of propellant usage and weight penalties. Comparison between the constant reverse gravity acceleration and impulsive reverse gravity acceleration to be used for the activation of propellant resettlement, it shows that impulsive reverse gravity thrust is superior to constant reverse gravity thrust for liquid reorientation in a reduced gravity environment.
Document ID
19910034516
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hung, R. J.
(Alabama Univ. Huntsville, AL, United States)
Shyu, K. L.
(Alabama, University Huntsville, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Engineering (General)
Report/Patent Number
AIAA PAPER 91-0108
Accession Number
91A19139
Funding Number(s)
CONTRACT_GRANT: NAS8-36955
CONTRACT_GRANT: NAGW-812
Distribution Limits
Public
Copyright
Other

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