| タイトル | Bubble behaviors in a slowly rotating helium dewar in a Gravity Probe-B spacecraft experiment |
| 著者（英） | Leslie, Fred W.; Hong, B. B.; Hung, R. J.; Tsao, Y. D. |
| 著者所属（英） | Alabama Univ.|NASA Marshall Space Flight Center |
| 発行日 | 1989-06-01 |
| 言語 | eng |
| 内容記述 | Potential problems for the Gravity Probe-B (GP-B) spacecraft design requirements and the operational considerations could arise because of the free surface configurations between liquid helium and helium vapor in the rotating dewar. This free surface is present in the partially filled liquid helium dewar. The liquid helium in the dewar is depleted as it is consumed as propellant for the spacecraft. In this study, the doughnut-shaped helium bubble equilibrium profiles in the rotating dewar have been numerically calculated. These calculations were performed under the conditions imposed during the period of the GP-B experiment instrument calibration (gyro spinup period) and also during the normal operational stages of the GP-B spacecraft. |
| NASA分類 | ENGINEERING (GENERAL) |
| レポートNO | 89A39156 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/363481 |
