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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

EXPERIMENTAL INVESTIGATION OF THE HEAT TRANSFER IN LAMINAR FORCED CONVECTION FLOW IN A GROOVED CHANNEL

Get access (open in a dialog) DOI: 10.1615/IHTC9.2720
pages 387-392

Аннотация

The subject of the present study is heat transfer in laminar forced convection flow in a grooved channel. In fully developed flow conditions the thermal boundary layer develops in the test section. The test section is a parallel plate duct with one heated wall with four grooves and the opposite plane wall. The aspect ratio of the grooves is a constant value, w:h = 4:1. The method of holographic interferometry is used to visualize the temperature field. In the paper, the heat transfer process in this complex geometry has been analysed in detail. Temperature profiles at different cross sections of the test section and local Nusselt number values along the investigated geometry are presented. It is shown that heat transfer augmentation is due to the increased local heat transfer in the redevelopment region, immediately after the reattachment of the flow.