Numerical studies of convective heat transfer in an inclined semi-annular enclosureNatural convection heat transfer in a two-dimensional differentially heated semiannular enclosure is studied. The enclosure is isothermally heated and cooled at the inner and outer walls, respectively. A commercial software based on the SIMPLER algorithm was used to simulate the velocity and temperature profiles. Various parameters that affect the momentum and heat transfer processes were examined. These parameters include the Rayleigh number, Prandtl number, radius ratio, and the angle of inclination. A flow regime extending from conduction-dominated to convection-dominated flow was examined. The computed results of heat transfer are presented as a function of flow parameter and geometric factors. It is found that the heat transfer rate attains a minimum when the enclosure is tilted about +50 deg with respect to the gravitational direction.
Document ID
19900058262
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wang, L.-W. (NASA Lewis Research Center Cleveland, OH, United States)
Chai, A.-T. (NASA Lewis Research Center Cleveland, OH, United States)
Yung, C.-N. (Toledo, University OH, United States)
Rashidnia, N. (NASA Lewis Research Center; Sverdrup Technology, Inc. Cleveland, OH, United States)