SPACE-BASED CRYOGENIC LIQUID-HYDROGEN REORIENTATION ACTIVATED BY LOW-FREQUENCY IMPULSIVE REVERSE THRUSTER OF GEYSER INITIATION

被引：21

作者：

HUNG, RJ

SHYU, KL

机构：

[1] The University of Alabama in Huntsville, Huntsville

来源：

ACTA ASTRONAUTICA | 1991年 / 25卷 / 11期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0094-5765(91)90047-9

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The 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 the 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, shows that impulsive reverse gravity thrust is superior to constant reverse gravity thrust for liquid reorientation in a reduced gravity environment.

引用

页码：709 / 719

页数：11

共 17 条

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