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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Flow features and heat transfer in the separation region of obstacles in a transient free boundary layer

Get access (open in a dialog) DOI: 10.1615/IHTC12.2060
6 pages

要約

This study describes results of experiments on flow visualizations and local convective heat transfer of 3D cylinder embedded in a transient natural boundary layer under uniform heat flux boundary condition. Especially, emphasis is put on the influence of the angular positions of the cylinder around a given axis and on its square or circular geometry on both local thermal measurements and flow patterns.For example, it is shown that only for the prism, a 60° position induces a singular behaviour by reducing the convective heat transfer coefficient ; this singularity is confirmed with visualizations of the separation region.