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Analysis of Turbulent Free-convection Boundary Layer on Flat Plate

Ernst Rudolf Georg EckertThomas W. Jackson

出版	National Advisory Committee for Aeronautics, 1950
URL	http://books.google.com.hk/books?id=-PeQ7w9_hPoC&hl=&source=gbs_api

註釋With the use of Karman's integrated momentum equation for the boundary layer and data on the wall-shearing stress and heat transfer in forced-convection flow, a calculation was carried out for the flow and heat transfer in the turbulent free-convection boundary layer on a vertical flat plate. The calculation is for a fluid with a Prandtl number that is close to unity. A formula was derived for the heat-transfer coefficient that was in good agreement with experimental data in the range of Grashof numbers from 10(exp 10) to 10(exp 12). Because of the good agreement between the theoretical formula and the experimental data the formula may be used to obtain data for higher Grashof numbers. The calculation also yielded formulas for the maximum velocity in the boundary layer and for the boundary-layer thickness.