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dc.contributor.advisorHoward, Richard M.
dc.contributor.authorJohnson, Dan A.
dc.dateSeptember 1989
dc.date.accessioned2013-01-23T22:09:03Z
dc.date.available2013-01-23T22:09:03Z
dc.date.issued1989-09
dc.identifier.urihttp://hdl.handle.net/10945/27059
dc.descriptionApproved for public release; distribution is unlimited
dc.description.abstractThe flowfield about a vertically-launched surface-to-air missile model at an angle of attack of 50 degrees and a Reynolds number of 1.1x10(5) was investigated in a low-speed wind tunnel at the Naval Postgraduate School. Determined were the location and intensity of the asymmetric vortices in the wake of the model using planar velocity vector, total pressure coefficient, and vorticity plots. Two model configurations were tested: one at a roll angle of 0 degrees (the "+" configuration) and the other at a roll angle of 45 degrees (the "x" configuration). Two flowfield conditions were used: one with no turbulence and the other with turbulence of a length scale on the order of the size of the nose-generated vortices. The following conclusions were reached: 1) the addition of turbulence changed the magnitudes of the variables without changing the patterns in the plots; 2) changing roll angle significantly altered the patterns of the plots; 3) in general, the locations of the vortices as indicated by the velocity plots do not coincide with the centers for the pressure or vorticity plots; 4) total pressure losses coincide with changes in magnitude of side force as noted in an earlier study.
dc.description.urihttp://archive.org/details/flowfieldmeasure00john
dc.format.extent64 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.titleFlowfield measurements in the wake of a missile at high angle of attacken_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentAeronautics and Astronautics
dc.subject.authorVertical launchen_US
dc.subject.authorSurface-to-air missileen_US
dc.subject.authorHigh angle of attack aerodynamicsen_US
dc.subject.authorTurbulenceen_US
dc.subject.authorBody of revolutionen_US
dc.subject.authorVortex asymmetryen_US
dc.description.serviceCaptain, United States Army
etd.thesisdegree.nameM.S. in Aeronautical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAeronautical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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