Global ETD Search

171	Experimental investigation on the self-induction theory of vortex breakdown and new observations in the transient development of a delta wing leading edge vortex / Thompson, Brad R. January 2007 (has links) Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (leaves 185-191). Vortex-motion. Airplanes
172	Step-by-step determination of ice accretion rates for aircraft Bowyer, James Marston January 1949 (has links) Typescript, etc. Airplanes--Ice prevention
173	Study of the effect of secondary separation on the lift of delta wings Jandali, Tarek January 1966 (has links) The flow at incidence to a slender delta wing with leading edge and secondary separation is considered. A potential flow model is constructed in which the spiral vortex sheets of the actual flow are replaced by concentrated vortices and flat vortex feeding sheets connecting them with the separation lines. The problem is then reduced to a two-dimensional one by the use of slender body theory and the assumptions of conical flow. The method of conformal mapping is employed to obtain the potential solution. The auxiliary boundary condition on each of the vortex systems is that it is force free. The resulting non-linear algebraic equations are solved numerically by means of an iterative method, and values for lift are obtained as a function of incidence. / Applied Science, Faculty of / Mechanical Engineering, Department of / Graduate Aerodynamics Airplanes -- Wings
174	The use of fin-corrugated periodic surfaces for the reduction of interference from large reflecting surfaces Ebbeson, Gordon Robert January 1974 (has links) The use of periodic structures to reduce interference from large reflecting surfaces is proposed. Instrument landing system (ILS) interference from large hangars and terminal buildings is cited as a typical problem. An analytical and numerical investigation of an infinite fin-corrugated surface composed of infinitely thin fins of spacing λ/2<a<λ under TM polarized plane wave illumination is described. Specular reflection from this surface can be completely converted to back-scatter in a direction opposite to the incident wave when the angle of incidence from the normal to the surface and the fin height are properly chosen. Experiments were performed at 35 and 37 GHz. using finite size fin-corrugated surfaces with fins of finite thickness under non-plane wave illumination and the results indicate that these surfaces behave essentially as predicted. In addition, the experimental surfaces remain completely effective for small oblique angles of incidence and have sufficient bandwidth for ILS applications. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate Interference (Aerodynamics) Airplanes Landing
175	Teaching aircraft identification. Lynch, Harold E. 01 January 1945 (has links) (PDF) No description available.
176	A combination of forced choice and check list rating scale for the evaluation of instrument flying proficiency / Holdrege, Fred Ernest January 1953 (has links) No description available. Psychology Air pilots Airplanes
177	Simulation and analysis of airborne antenna radiation patterns / Kim, Jacob Jeong-Geun January 1985 (has links) No description available. Engineering Antennas Airplanes--Fuselage
178	Bi-normal coordinates in discrete systems with application to an aircraft shimmy problem / Rogers, Lynn Carroll January 1972 (has links) No description available. Engineering Coordinates Airplanes
179	Analysis of aircraft wing-mounted antenna patterns / Marhefka, Ronald Joseph January 1976 (has links) No description available. Engineering Airplanes Antennas
180	Interaction of policy and stochastic effects in an Air Force reparable item process : a model of aircraft engine aging and removal over time / Jones, Eugene Etheridge January 1978 (has links) No description available. Engineering Stochastic processes Airplanes

Search results