Turbulent fluid flow and heat transfer in annular passages with rough surfaces and moving cores.

Steven J. Keays
This study investigates the behaviour of fully developed fluid flows in concentric annuli with rough surfaces and moving cores, by analytically predicting the effects of surface roughness, core velocity and turbulent motion on the momentum and heat transfer characteristics of the flow, such as friction forces, velocity profiles, temperature profiles and heat transfer. The analytical predictions are produced by a mathematical model based on an adaptation of Prandtl's mixing length theories and on the data...
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