Hypersonic power-law bodies of maximum lift-to-drag ratio

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dc.contributor.advisorMiele, Angeloen_US
dc.creatorHuang, Ho-Yien_US
dc.date.accessioned2016-04-21T12:01:53Zen_US
dc.date.available2016-04-21T12:01:53Zen_US
dc.date.issued1966en_US
dc.description.abstractThe problem of maximizing the lift-to-drag ratio of a slender, flat-top hypersonic body is investigated under the assumptions that the pressure distribution is Newtonian and the skin-friction coefficient is constant. Direct methods are employed, and the analysis is confined to the class of bodies whose transversal contour is semicircular and whose longitudinal contour is a power law. First, unconstrained configurations are considered, and the combination of power law exponent and the thickness ratio maximizing the lift-to-drag ratio is determined. It is found that the maximum lift-to-drag ratio LID = 0.360 Cf1/3 and corresponds to a conical configuration of thickness ratio t/l = 1.18 Cf1/3, where Cf is the skin-friction coefficient. Next, constrained configurations are considered, that is, conditions are imposed on the length, the thickness, the volume, the wetted area, and the center of pressure. For each combination of constraints, an appropriate similarity parameter is introduced, and the optimum power law exponent, thickness ratio, and the lift-to-drag ratio are determined as functions of the similarity parameter.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent47 ppen_US
dc.identifier.callnoThesis M.E. 1966 HUANGen_US
dc.identifier.citationHuang, Ho-Yi. "Hypersonic power-law bodies of maximum lift-to-drag ratio." (1966) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/89216">https://hdl.handle.net/1911/89216</a>.en_US
dc.identifier.digitalRICE0253en_US
dc.identifier.urihttps://hdl.handle.net/1911/89216en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleHypersonic power-law bodies of maximum lift-to-drag ratioen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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