Analysis of Rough Wall Turbulent Heating with Application to Blunted Flight Vehicles
Interim rept. 1 Dec 1977-30 Sep 1978
PHYSICAL SCIENCES INC ANDOVER MA
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The effect of surface roughness on turbulent heating rates is studied, using a second-order closure model which specifically describes the effect of roughness elements on the boundary layer. Comparisons with detailed measurement from low speed flat plate tests are presented to verify the model. A significant number of successful comparisons have also been made with wind tunnel heat transfer data, mostly for hemispherical noses. The rough wall computations are analyzed to determine the nature of the roughness influence, and to derive improved heat transfer correlations for engineering applications.
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