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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Development of inexpensive acquisition and diagnostic technique for piston-engine aircraft

Thio, Tzer Hwai Gilbert. January 2001 (has links)
Thesis (M.S.)--Mississippi State University. Department of Electrical and Computer Engineering. / Title from openning screen viewed Apr. 22, 2001. Includes bibliographical references.
82

Step-by-step determination of ice accretion rates for aircraft

Bowyer, James Marston January 1949 (has links)
Typescript, etc.
83

Inlet distortion generation for a transonic compressor

Papamarkos, Ioannis. 09 1900 (has links)
Approved for public release, distribution unlimited / A single-stage transonic research compressor and test rig are to be used to obtain data on the effect of inlet flow distortion on compressor (and therefore engine) stall. Auxiliary injection was examined as a technique for generating distortion in inlet stagnation pressure, or temperature, or to simulate the more complex effects of engine steam ingestion from a catapult launch. Engineering analyses were developed and programmed in EES to relate inlet conditions to the compressor characteristics, for both pressure and temperature distortion. An injection duct area of 8% was selected to limit the required heater power. A CFD analysis was carried out to predict the compressor inlet flow field and hence position the injection duct exit. It was found that a broad range of distortion parameters could be generated by simply ducting (and heating) atmospheric air (or steam) through an auxiliary inlet throttle valve.
84

Flow field survey in a transonic compressor rig

Rose, Christopher W. 06 1900 (has links)
Approved for public release, distribution unlimited / As the Navy prepares to transition to F-35C Joint Strike Fighter the need to understand "pop stalls-- caused by steam leakage in catapult systems is of concern. â Pop stalls* caused by steam ingestion through the aircraft engine result in a loss of power and possible engine stall. The F-35C is a single engine aircraft and therefore the probability of a â pop stall* resulting in the loss of the aircraft is increased. Investigation of this phenomenon is currently being examined at the Turbopropulsion Laboratory by means of a transonic compressor rotor. The present study utilizes both three and five-hole probes to survey the flow field upstream and downstream of the rotor to examine compressor stability. A new compressor performance map was defined and a validation of previous steam ingestion was performed. / US Navy (USN) author.
85

Unsteady casewall pressure measurements in a transonic compressor during steam induced stall

Levis, William R. 06 1900 (has links)
Approved for public release, distribution unlimited / During launch of aircraft off of a carrier deck, steam leakage is sometimes ingested into the aircraft's engine and may cause a compressor stall or 'pop-stall'. As the US Navy prepares to field the single engine F-35C Joint Strike Fighter, it becomes necessary to investigate the phenomenon known as 'pop-stall'. In the present study, steady-state as well as transient measurements prior to and during a steam induced rotating stall were taken. Changes to the honeycomb altered the performance characteristics of the Transonic Compressor Rig and needed to be remapped in order to determine a new stall line as well as a peak performance criterion. Data was taken at 90 percent design speed as well as during a 70 percent steam induced stall with the aide of 9 Kulites at varying positions along the case wall. Data was reduced and analyzed through the use of a data acquisition and data reduction system. / US Navy (USN) author.
86

Aircraft noise regulation

Ionescu, Irina Gabriela January 2004 (has links)
No description available.
87

Dynamic model of the interface reactions in an aircraft bomb rack due to an external store

Schoppert, Timothy C. January 2002 (has links)
Thesis (Ph. D.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains xv, 201 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 121-125).
88

Verfahren zur Berechnung des Auftriebes gegebener Tragflächen-Profile

Höhndorf, Fritz, January 1926 (has links)
Thesis (doctoral)--Friedrich-Wilhelms-Universität zu Berlin, 1926. / "Sonderabdruck aus: Zeitschrift für angewandte Mathematik und Mechanik, Band 6, 1926, Seite 265 bis 283"--P. [1]. Vita. Includes bibliographical references.
89

On the formation of vortex breakdown over delta wings /

Sutthiphong Srigrarom. January 2001 (has links)
Thesis (Ph. D.)--University of Washington, 2001. / Vita. Includes bibliographical references (leaves 185-191).
90

Modeling wing tank flammability

Dadia, Dhaval D., January 2009 (has links)
Thesis (M.S.)--Rutgers University, 2009. / "Graduate Program in Mechanical and Aerospace Engineering." Includes bibliographical references (p. 100-101).

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