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On The Near Field Mean Flow Structure Of Transverse Jets Issuing Into A Supersonic Freestream

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On The Near Field Mean Flow Structure Of Transverse Jets Issuing Into A Supersonic Freestream

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dc.contributor.author Dickmann, Dean Anthony en_US
dc.date.accessioned 2008-04-22T02:41:22Z
dc.date.available 2008-04-22T02:41:22Z
dc.date.issued 2008-04-22T02:41:22Z
dc.date.submitted December 2007 en_US
dc.identifier.other DISS-1870 en_US
dc.identifier.uri http://hdl.handle.net/10106/691
dc.description.abstract The near field mean flow structure of transverse jets issuing from a surface into supersonic crossflow is examined using numerical methods and separation topology. The Navier-Stokes solver Falcon, developed at Lockheed Martin, was used to simulate the interaction between the jet and freestream over a flat plate and a generic missile body. The near field flow structure included a l bow shock upstream of the jet interacting with the approaching boundary layer that forms a pair of horseshoe vortices while another l- structure closer to the jet formed a second pair of horseshoe vortices. As the jet was turned downstream by the crossflow, the so-called barrel shock terminates in a Mach disk while vortices formed within the jet plume. Downstream of the jet exit, new flow structure was identified in the form of three pairs of vortices. Horn, near field and far field wake vortices were present downstream of the jet as well as a series of compression waves resulting in a gradual pressure rise downstream of the jet overexpansion. The wave formations and the vortices formed from them affected separation topology, performance parameters and amplification coefficients. The current understanding of the flow structure in the near field of a transverse jet in supersonic flow must be amended to include these newly identified vortices and compression waves. en_US
dc.description.sponsorship Lu, Frank en_US
dc.language.iso EN en_US
dc.publisher Aerospace Engineering en_US
dc.title On The Near Field Mean Flow Structure Of Transverse Jets Issuing Into A Supersonic Freestream en_US
dc.type Ph.D. en_US
dc.contributor.committeeChair Lu, Frank en_US
dc.degree.department Aerospace Engineering en_US
dc.degree.discipline Aerospace Engineering en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level doctoral en_US
dc.degree.name Ph.D. en_US
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=274
dc.identifier.externalLinkDescription Link to Research Profiles

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