Abo Bibliothek: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

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

HEAT TRANSFER ASSOCIATED WITH A FORWARD FACING STEP

Get access (open in a dialog) DOI: 10.1615/IHTC9.2300
pages 351-355

Abstrakt

A preliminary experimental study of heat transfer associated with a forward facing step is reported. Experiments were conducted in a short duration flow facility: an 11 m Ludwieg tunnel which was modified especially for this purpose. The heat transfer is measured by platinum film strip heat flux gauges which are installed on the leading and trailing plates but not on the front facing wall. Measurements were performed within the range of Reynolds number (based on step's height) Res = 11,800 to 32,200.
Distribution of the heat transfer coefficient indicates dependency of the flow field on the Reynolds number, which implies that the flow within the front recirculating region may be not fully isotropic turbulent. In addition, the relative high scattering of the heat transfer data suggests the presence of vortex shedding which is being revealed as large scale eddies.