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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

NUMERICAL SIMULATION OF THREE DIMENSIONAL UNSTEADY FLOW AND HEAT TRANSFER AROUND A SURFACE-MOUNTED HEXAHEDRON IN A CHANNEL

Get access (open in a dialog) DOI: 10.1615/IHTC11.2550
pages 133-138

Аннотация

A numerical analysis based on the finite difference method was made on a three-dimensional unsteady separated and reattached flow around a surface-mounted hexahedron in a channel with two parallel walls, and the heat transfer characteristics therein were also analyzed. Reynolds number treated is 1000 and Prandtl number 0.7, respectively. At Re = 1000, the horseshoe vortex becomes unsteady in the neighborhood of the side surface and the shear layer from the front, corner rolls up and is shed downstream. Furthermore, it is clarified that the vortices are periodically shod from the side corner. The temperature on the hexahedron surface exhibits a complicated distribution since the flow around the hexahedron is very complex. It is also shown that on the side surface, the local Nusselt number varies with time originating from the vortex shedding, but the local Nusselt number on the other surfaces shows no essential variation with time.