| タイトル | Liquid hydrogen slosh waves excited by constant reverse gravity acceleration of geyser initiation |
| 著者（英） | Shyu, K. L.; Lee, C. C.; Hung, R. J. |
| 著者所属（英） | NASA Marshall Space Flight Center; NASA |
| 発行日 | 1992-08-01 |
| 言語 | eng |
| 内容記述 | The requirement to settle or to position liquid fuel over the outlet end of the spacecraft propellant tank before main engine restart poses a microgravity fluid behavior problem. Resettlement or reorientation of liquid propellant can be accomplished by providing the optimal acceleration to the spacecraft such that the propellant is reoriented over the tank outlet. In this study slosh wave excitation induced by the resettling flowfield during the course of liquid reorientation with the initiation of geyser for liquid-filled levels of 30, 50, 65, 70, and 80 percent have been studied. Characteristics of slosh waves with various frequencies excited are discussed. Slosh wave excitations will affect the fluid stress distribution exerted on the container wall and shift the fluid mass distribution inside the container, which imposes the time-dependent variations in the moment of inertia of the container. This information is important for the spacecraft control during the course of liquid reorientation. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 93A32565 |
| 権利 | Copyright |
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