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Full-Text Articles in Engineering
A Study Of Wings With Constant And Variable Sweep For Aerodynamic Efficiency In Inviscid Flow, Bruno Moorthamers
A Study Of Wings With Constant And Variable Sweep For Aerodynamic Efficiency In Inviscid Flow, Bruno Moorthamers
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Wing sweep has been studied by industry and academia since the pioneering days of aviation for both high-speed and low-speed applications. In transonic and supersonic flight regimes it serves to delay the onset of compressibility effects and decrease wave drag. In subsonic conditions, flying wing designs sweep back the main lifting surface in such a way that it can be used for longitudinal stability and control, to allow for the elimination of a traditional empenage. This is desirable because it can decrease the aerodynamic drag. Sweep can also be seen in nature in the wings of birds and fins of …
Transonic Small-Disturbance Theory/Integral Boundary Layer Airfoil Data For The Low-Fidelity Common Research Model, Jeffrey D. Taylor, Douglas Hunsaker
Transonic Small-Disturbance Theory/Integral Boundary Layer Airfoil Data For The Low-Fidelity Common Research Model, Jeffrey D. Taylor, Douglas Hunsaker
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Lift, Drag, and Moment Coefficient data for the Low-Fidelity Common Research Model wing airfoil sections.
A General Approach To Lifting-Line Theory, Applied To Wings With Sweep, Jackson T. Reid
A General Approach To Lifting-Line Theory, Applied To Wings With Sweep, Jackson T. Reid
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Lifting-line theory is one simple method of predicting the lift produced by a wing. The traditional implementation of lifting-line theory, developed in 1918, is limited to predicting the lift of traditional straight wings. In this work, lifting-line theory is extended to predict the lift produced by modern swept (or "v-shaped") wings by strategically handling the singularities inherent to the theory. The resulting formulation is shown to be both accurate and computationally inexpensive, when compared to experimental and higher-fidelity computational results, demonstrating the method's usefulness as an aerodynamic design tool. Because of the low computational cost and accuracy of the method …