Measurements of Turbulent Boundary Layer Growth Over a Longitudinally Curved Surface PDF Download

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Measurements of Turbulent Boundary Layer Growth Over a Longitudinally Curved Surface

Measurements of Turbulent Boundary Layer Growth Over a Longitudinally Curved Surface PDF Author: Robert N. Meroney
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 98

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Book Description
The result of an additional rate of strain on a turbulent parcel of fluid as it undergoes even mild streamline curvature can be very large. Until recently skin friction and heat transfer calculations have ignored this effect. Recent measurements over turbine cascades suggest that curvature influences heat transfer by an order of magnitude. In addition there exists a strong analogy between the effects of centrifugal body forces and the buoyance body force arising in density stratified flow in a gravity field. This note reports the results of a set of measurements of boundary layer development over convex and concave surfaces and compares the results with various turbulence models utilized in computational programs. A moderate curvature wind tunnel test section was constructed to examine the influence of curvature on boundary layer structure. (Modified author abstract).