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ISSN Online: 2377-424X

ISBN Print: 0-89116-130-9

International Heat Transfer Conference 6
August, 7-11, 1978, Toronto, Canada

ON THE SUDDEN VANISH OF A THIN VERTICAL PLATE IN A FREE CONVECTION FLOW

Get access (open in a dialog) DOI: 10.1615/IHTC6.3170
pages 199-204

Resumo

The physical case under consideration here is the sudden melting of a two-dimensional semi-infinite thin vertical plate under a free convection condition in a viscous incompressible fluid. This investigation is a follow-up of the sudden melting phenomenon in a forced convection case reported in the last meeting ("The Sudden Melting of a Thin Plate in a Forced Convection Flow" by F.B. Cheung, Y.L. Chen and V.W. Nee, Heat Transfer 1974.II-65). The unsteady temperature and flow developments after the disappearance of the heated plate revealed interesting unsteady phenomenon hitherto unknown. For instance, the temperature field decays monotonically while the velocity field as a whole expands in the first stage of development reaching to a maximum before it starts to decrease. In the present study, the complete time history of the unsteady development of the melting plate free convection flow has been obtained by a finite difference numerical method. Results obtained here are compared with the forced convection melting case in order to see the different behaviors and characteristics.