Numerical simulation of natural convection in a spherical container due to cooling at the center (idealization of the Lal/Kroes experiment).
- Robertson, S. J.
- Feb 1, 1981.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
- Natural convection in a spherical container with cooling at the center was numerically simulated using a numerical fluid dynamics computer program. The numerical analysis was simplified by assuming axisymmetric flow in the spherical container, with the symmetry axis being a sphere diagonal parallel to the gravity vector. This axisymmetric spherical geometry was intended as an idealization of the proposed Lal/Kroes crystal growing experiment to be performed on Spacelab. Results were obtained for a range of Rayleigh numbers from 25 to 10,000. The computed velocities were found to be approximately proportional to the Rayleigh number over the range of Rayleigh numbers investigated.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19810008862., Accession ID: 81N17382., LMSC-HREC-TR-D784100., and NASA-CR-163955.
- No Copyright.
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