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dc.contributor.advisorPlatzer, Max F.
dc.contributor.advisorHebbar, S. K.
dc.contributor.authorDane, Carl W.
dc.dateMarch 1992
dc.date.accessioned2012-11-29T16:14:33Z
dc.date.available2012-11-29T16:14:33Z
dc.date.issued1992-03
dc.identifier.urihttp://hdl.handle.net/10945/23671
dc.description.abstractA low-speed wind tunnel investigation was conducted to determine if a small secondary airfoil or wave propeller, oscillating in a rotary plunging motion, could significantly affect the airflow over a lifting airfoil surface to delay the onset of stall. The lifting airfoil shape was a NACA 66(215)-216, chosen for its chordwise pressure port instrumentation. Testing consisted of measuring the pressure distribution of the NACA 66(215)-216 airfoil past the stall angle of attack, and then again in combination with the wave propeller. The wave propeller was located in two different positions; above the lifting airfoil's trailing edge, and aft of the trailing edge. The propeller was operated in both clockwise and counter-clockwise directions. The propeller effectiveness was evaluated by comparing the pressure distributions and computed lift curve slopes with and without propeller operation. Reynolds number varied from 1/4X10(5) to 2.57X10(5). Mechanical limitations resulting in testing to only ten percent of the desired propeller speeds. Results indicated that the wave propeller acted to block the air flow over the lifting wing causing early separation and loss of lift.en_US
dc.description.urihttp://archive.org/details/exploratoryexper1094523671
dc.format.extent57 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.en_US
dc.titleExploratory experimental investigation of a wave propelleren_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentDepartment of Aeronautics and Astronautics
dc.subject.authorUnsteady excitationen_US
dc.subject.authorKatzmayr effecten_US
dc.subject.authorHigh liften_US
dc.description.serviceCivilian, United States Air Forceen_US
etd.thesisdegree.nameM.S. in Aeronautical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAeronautical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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