![]() It has various advantages, including a low wetted area to internal volume ratio, the ability to distribute elliptic lift, a smooth changing cross-section distribution, and sufficient room for engine installation on the top of the airframe, to name a few. It consists of the main section (center body or fuselage) and an outer segment (wing), with the blending area in between, where the center body seamlessly merges (blends) into the wing geometry (Fig. The Blended Wing Body (BWB) is a tailless design that merges the wing and fuselage and was originally intended as a unique platform for high-speed subsonic commercial airliners toward the end of the twentieth century. KeywordsBlended Wing Body (BWB), Unmanned Aerial Vehicle (UAV), Morphing Winglet, Aerodynamic Design, Computational Fluid Dynamics. CFD analysis predicts the increase in the aerodynamic efficiency of the wing when the BWB vehicle is designed with a morph-able winglet. The addition of winglets to morphable wings improved the vehicle's aerodynamic performance. It is found that the drag coefficient is reduced at a high angle of attack with winglet configuration which also increases the lift to drag ratio. The best configuration is then compared to the baseline configuration to determine the aerodynamic performance benefits of the morphing winglet idea. The configurations are compared in terms of aerodynamic efficiency to determine the best setup for each of the BWB mission's pre-defined flight segments. Three distinct configurations are computationally investigated in cruise flying conditions, at various angles of attack, using the winglet cant angle as the morphing parameter. On a BWB platform, a CFD-aided analysis of the morphing winglet concept is shown and explored. ![]() The traditional sizing and trade study methods were adopted to incorporate the characteristics of the BWB platform, further, the aerodynamic performance of the UAV can be increased by the implementation of a morphing design or an adaptive design. Trade studies are carried out to establish the aerodynamic design parameters based on the Design requirements. Swarna Mayuri Kumar M.Tech Scholar Mechanical Departmentīirla Institute of Technology and Science, Pilani IndiaĪbstractThe current work is an Aerodynamic design study of a Blended Wing Body (BWB) Unmanned-Aerial-Vehicle (UAV). Aerodynamic Design and Analysis of a Blended Wing Body UAV Configuration
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