NDLI: A three-dimensional turbulent boundary layer undergoing transverse strain and streamwise pressure gradient

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A three-dimensional turbulent boundary layer undergoing transverse strain and streamwise pressure gradient

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hebbar, S. K. Driver, D. M.
Copyright Year	1985
Description	Results from an experimental investigation designed to provide data on both mean and turbulence quantities in the axisymmetric, swirling boundary layer (with and without pressure gradient) flowing over a stationary cylinder downstreams of a spinning cylindrical section are presented. The pressure gradient was introduced into the flow field by a 25.4 mm-high, forward-facing, circular step mounted on the stationary cylinder, the step height being nearly equal to the thickness of the approaching boundary layer. All the measurements were made at a nominal upstream reference Reynolds number of 2.4 x 10 to the 6th power/m (corresponding to an upstream reference velocity of 36 to 37 m/sec) with the rotation of the spinner set to make its peripheral speed equal the reference velocity. The data reported included measurements of surface pressure and the mean surface shear-stress vector taken with a miniature, directional, surface-fence gage. These measurements were supplemented by oil-flow visualization studies of the stationary cylinder. The data indicates that the streamwise pressure gradient controls the development of the streamwise component of wall shear, but leaves the peripheral component of wall shear practically unaffected.
File Size	1052872
Page Count	41
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19850026045
Archival Resource Key	ark:/13960/t75t8hm8q
Language	English
Publisher Date	1985-08-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Turbulent Wakes Skin Friction Flow Distribution Turbulent Boundary Layer Shear Stress Prediction Analysis Techniques Pressure Gradients Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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