Prediction of Local and Integrated Heat Transfer in Nozzles Using an Integral Turbulent Boundary Layer
Donald R. Boldman
Jan 1972 · National Aeronautics and Space Administration
Ebook
28
Pages
About this ebook
An empirical modification of an existing integral energy turbulent boundary layer method is proposed in order to improve the estimates of local heat transfer in converging-diverging nozzles and consequently, provide better assessments of the total or integrated heat transfer. The method involves the use of a modified momentum-heat analogy which includes an acceleration term comprising the nozzle geometry and free stream velocity. The original and modified theories are applied to heat transfer data from previous studies which used heated air in 30 deg - 15 deg, 45 deg - 15 deg, and 60 deg - 15 deg water-cooled nozzles.
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