Liquid crystal mapping of jet crossflow interactions

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dc.contributor.advisorNunn, R.H.
dc.contributor.authorJohnson, Michael David
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical Engineering
dc.dateDecember 1981
dc.date.accessioned2012-11-20T00:16:49Z
dc.date.available2012-11-20T00:16:49Z
dc.date.issued1981-12
dc.description.abstractThe use of liquid crystal thermography is discussed as a technique for visualizing the disturbance field created on a surface from which a jet is injected into a crossing flow. The study is part of an ongoing investigation of the perfor­mance of jet steering systems such as ship bow thrusters. An experimental apparatus was designed and built to provide a heated surface coated with liquid crystals. For a range of jet-to-crossflow velocity ratios, the temperature field on the flat plate was visually represented. The technique allowed continual visual observation of the cooling effects of the jet as jet velocity increased. It also showed the cooling pattern similarities that exist at the same velocity ratios for different crossflow velocities. Strong visual similarities were shown to exist between the temperature distribution on the flat plate as depicted by the liquid crystals and the theoret­ical surface velocity field around a jet modeled as a symmet­rical foil near the point of injection and a vortex sheet in the plumes.
dc.description.distributionstatementApproved for public release; distribution is unlimited.
dc.description.serviceLieutenant, United States Navyen_US
dc.description.urihttp://archive.org/details/liquidcrystalmap1094520584
dc.identifier.urihttps://hdl.handle.net/10945/20584
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.subject.authorLiquid crystalsen_US
dc.subject.authorThermographyen_US
dc.subject.authorLateral thrust unitsen_US
dc.subject.authorBow thrusteren_US
dc.subject.authorJet-crossflow interactionen_US
dc.subject.authorJets in crossflowen_US
dc.subject.authorIsothermsen_US
dc.subject.authorFlat plateen_US
dc.subject.lcshMechanical engineeringen_US
dc.titleLiquid crystal mapping of jet crossflow interactionsen_US
dc.typeThesisen_US
dspace.entity.typePublication
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.nameM.S.in Mechanical Engineeringen_US
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