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contributor authorX. Zhang
contributor authorM. W. Collins
date accessioned2017-05-08T23:53:46Z
date available2017-05-08T23:53:46Z
date copyrightDecember, 1997
date issued1997
identifier issn0098-2202
identifier otherJFEGA4-27123#934_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/118860
description abstractThe nearfield evolution of a longitudinal vortex embedded in a turbulent boundary layer was examined in a wind-tunnel test. The Vortex was produced by an inclined round jet, the diameter of the jet being 0.4δ0.99 . Flow properties were measured at a freestream velocity of 20 m/s using a laser Doppler anemometer. Control parameters are jet skew and pitch angles, and speed ratio. It was observed that a single vortex is generated at x = 10D. The effects of the control parameters on the strength and location of the vortex were examined. For an embedded vortex and favorable velocity distribution, the test results suggested a skew angle of 60 deg, a pitch angle of α = 30 deg, and speed rations of γ = 1.0. The study provided insight into the flow physics and a database.
publisherThe American Society of Mechanical Engineers (ASME)
titleNearfield Evolution of a Longitudinal Vortex Generated by an Inclined Jet in a Turbulent Boundary Layer
typeJournal Paper
journal volume119
journal issue4
journal titleJournal of Fluids Engineering
identifier doi10.1115/1.2819520
journal fristpage934
journal lastpage939
identifier eissn1528-901X
keywordsVortices
keywordsBoundary layer turbulence
keywordsFlow (Dynamics)
keywordsLasers
keywordsPhysics
keywordsDatabases AND Wind tunnels
treeJournal of Fluids Engineering:;1997:;volume( 119 ):;issue: 004
contenttypeFulltext


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