Abstract
Cavity flow induced by a fluctuating gravitational field normal to an initially imposed density gradient is considered. This configuration is a simplified model to study fluid flow in a directional solidification cell subjected to external accelerations, such as those encountered in a typical microgravity environment. The effect of both periodic deterministic disturbances and narrow band noise are considered. It is found in the latter case that the mean squared displacement of a fluid element grows as a power law in time, and that the particular exponent depends on whether viscous effects are important.
| Original language | English (US) |
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| Title of host publication | Fluid Mechanics Phenomena in Microgravity |
| Publisher | Publ by ASME |
| Pages | 133-138 |
| Number of pages | 6 |
| Volume | 174 |
| ISBN (Print) | 0791810372 |
| State | Published - Dec 1 1993 |
| Event | Proceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA Duration: Nov 28 1993 → Dec 3 1993 |
Other
| Other | Proceedings of the 1993 ASME Winter Annual Meeting |
|---|---|
| City | New Orleans, LA, USA |
| Period | 11/28/93 → 12/3/93 |