The Gravity Probe-B (GP-B) Spacecraft is designed to test the General Theory of Relativity through long-term monitoring the precession of a set of gyros in free-fall around the earth. The potential problems for GP-B Spacecraft design requirements could be due to asymmetry in the static liquid helium distribution, or to perturbations in free surface which is present in the partially-filled liquid helium dewar. In this study, doughnut-shaped helium bubble equilibrium profiles in rotating dewar, under the conditions during the period of GP-B experiment instrument calibration and also during the period of normal operation stages of GP-B Spacecraft, have been numerically calculated. For academic interest, the range of coverage has been extended beyond the conditions assigned by the GP-B Spacecraft experiment.
Axisymmetric bubble profiles in a slowly rotating helium dewar under low and microgravity environments
Acta Astronautica ; 19
1989-05-01
Sonstige
Keine Angabe
Englisch
Dynamical behaviour of cryogenic helium in a partially filled dewar in microgravity
Online Contents | 1996
|Dynamical behaviour of cryogenic helium in a partially filled dewar in microgravity
Tema Archiv | 1996
|Dynamical Behaviour of Cryogenic Helium in a Partially Filled Dewar in Microgravity
SAGE Publications | 1996
|