Theses and Dissertations
Renewable production of water, hydrogen, and power from ambient moisture
(Monterey, California: Naval Postgraduate School, 2016-12)
This thesis developed a concept design and prototype system capable of increasing and improving the main energy constraints the Department of Defense must overcome to meet future mission requirements, energy availability ...
Stall analysis in a transonic compressor stage and rotor
(Monterey, California. Naval Postgraduate School, 2009-06)
Gas turbine engine design is based on simplifying assumptions, including axi-symmetric flow. These assumptions break down in the real machines especially when operating near to stall. The reduction in operating surge ...
Development and Analysis of a Bi-Directional Tidal Turbine
(Monterey, California. Naval Postgraduate School, 2012-03)
The concept of using renewable energy for power generation has experienced much attention with increasing costs of non-renewable sources. The largest untapped renewable energy resource is in the form of the oceans and ...
Loss measurements in the endwall region of a cascade of compressor blades at stall
(Monterey California. Naval Postgraduate School, 2006-06)
Flow around second-generation controlled-diffusion blades in cascade at stall was investigated using fivehole probe surveys. Wake pressure surveys were conducted at various locations between the cascade centerline and ...
Flow visualization and detailed load measurements over a maneuvering UCAV 1303
(Monterey, California. Naval Postgraduate School, 2011-03)
The unsteady aerodynamic performance of a maneuvering 1/72nd scale model of an unmanned combat air vehicle (UCAV) 1303 geometry has been studied in the Naval Postgraduate School water tunnel. Despite the numerous past ...
Development of a MEMS-Scale Turbomachinery Based Vacuum Pump
(Monterey, California. Naval Postgraduate School, 2012-06)
This study forms part of a larger study to develop a MEMS scale turbomachinery based vacuum pump. This would allow very high vacuum to be drawn for handheld mass spectroscopy. This thesis concentrates on the roughing portion ...
Experimental investigation of high-pressure steam induced stall of a transonic rotor
(Monterey, California. Naval Postgraduate School, 2007-06)
Steam leakage from the catapult system of U.S. Navy aircraft carriers can stall the compressors of modern jet aircraft if ingested during takeoff. This phenomenon, known as "pop stall", is of particular concern to the U.S. ...
Experimental investigation and numerical prediction of the performance of a cross-flow fan
(Monterey California. Naval Postgraduate School, 2006-12)
The concept of a fan-wing aircraft configuration for the purpose of vertical takeoff and landing has drawn much attention. Recently, more investigations revealed that a cross-flow fan (CFF) was capable of providing the ...
Flow field survey in a transonic compressor rig
(Monterey California. Naval Postgraduate School, 2006-06)
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 ...
Design, test, and evaluation of a transonic axial compressor rotor with splitter blades
(Monterey, California: Naval Postgraduate School, 2013-09)
A new design procedure was developed and documented that uses commercial-off-the-shelf software (MATLAB, SolidWorks, and ANSYS-CFX) for the geometric rendering and analysis of a transonic axial compressor rotor with splitter ...
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Hobson, Garth V. (61)
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Mechanical Engineering (61)