Thus, as a result, the overall shape and operating characteristics of aerospace vehicles resemble each other regardless of the company or the engineers which have worked on that particular design. Hence, similar characteristics pop up in each aerospace vehicle. However, there are many areas of improvement within these constrained design parameters. Especially as the fuel prices across the world soars every day, the concept of lowering the fuel cost for commercial, military as well as research vehicles have become more urgent then ever. Lowering the overall fuel consumption of the aerospace vehicle is an important criteria as it allows the aircraft to operate with less operational costs. Naturally, reduction in fuel consumption can be achieved by altering the various phases in the propulsion system of the aircraft; but the real reduction in fuel can only be achieved by lowering the aerodynamic drag that is acting upon the vehicle itself. This is quite important, as the overall drag force on the aerospace vehicle as well as the geometric zone of effect can have a large impact on the fuel consumption of the aero vehicle. ...
In essence, the main objective is to make the flow become as smooth as possible without causing any major obstructions in the flow around the body. This way, the amount of drag force induced by aerodynamic forces can be severely minimized and more importantly the coefficient of lift at the same time can be maximized. In addition, this will also help control the overall flight stability characteristics of the airplane itself. This thesis will concentrate on using Karman Vortex Street Phenomena to the Application of Multiple Wingtip Feathered Winglets for the Reduction of Induced Drag in Aerospace vehicles for the purpose of reducing fuel consumption. In fact, the interaction of aeroelastic forces with the aerodynamic coefficients is an interesting phenomena as well as its effects on the drag. Karman Vortex Street Phenomena will be examined in detail and then with corresponding experimental and computational data, the thesis will show that the application of multiple wingtip feathered winglets will have a measurable effect in reducing the overall drag and hence the overall fuel cost of the aerospace vehicle. The conclusion will be strengthened with data as well as original solution methods which will be introduced in this thesis. 2.0 Karman Vortex Street Phenomena One of the most interesting aerodynamic concepts is the Karman Vortex Street Phenomena. It is essentially a combination of swirling vortices formations that continue to repeat themselves. There are several reasons cited for the presence of Karman Vortex Street and one of the most important reasons is the unsteady and inhomogeneous separation of the flow around bluff solid bodies. As it can be seen in the below
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Client Name Surname August 1, 2011 Karman Vortex Street Phenomena to the Application of Multiple Wingtip Feathered Winglets to the Reduction of Induced Drag In Aerospace Vehicles 1.0 Introduction One of the most important changes in our world is definitely the advancements in aerospace science and technology along with the research that goes with it…
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12 pages (3000 words)Thesis Proposal
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