Pritam final year Poster1
- 1. CFD Results Images below shows the velocity magnitude results of wing without winglet and wing with Blended winglet2. wing separates the flow by upper surface with high pressure and lower surface with low pressure which create pressure difference area behind the wing, the velocities with pressure different interface behind wing and results development of vortex which creates pressure drag. Reducing the pressure drag leads to high velocity and better performance. The use of winglets reduces the pressure drag and increases the velocity, the wing design with Blended winglet 2 has increased the velocity magnitude by 2.64% compare to wing without winglet. The column chart below shows the CFD results of aerodynamic efficiency in terms of Cl/Cd of a wing model without winglet and 10 wing designs with different winglets. These 10 wing designs include 5 wing models with Blended winglets and 5 with Ranked winglet. Conclusions The aim of this project was to CFD analyse the wing without winglet and the changes after attaching the winglet at wingtip, also to find the wing design with winglet with better efficiency. In the results of CFD analysis of wing designs it was learned that wing with Blended winglet 2 has the maximum aerodynamic efficiency in terms of Cl/Cd in this study. By using this winglet the efficiency of wing has increase by 5.57%. According to this study it was also found that adding the winglet to the wing improves aircraft performance which will not only make it sustainable in terms of carbon reductions but also fuel efficient. Aircrafts winglets analysis in CFD Pritam Jodha Supervisor: Dr. Klaudio Bari College of Engineering and Technology, The University of Derby, Derby, DE22 3AW BEng (Hons) Mechanical Engineering Introduction The rising cost of fuel, operating cost and increasing CO2 in atmosphere is the reason aircraft industry started researching to get efficient aircraft designs. The researchers found some design modification in wing design by adding winglets to reduce the drag and air vortex but researcher will always continue to find better outcomes The device attached at the wingtip is called winglet. Winglets can be seen as a vertical or angled extension at the wingtip. It is used to lower the induced drag created by wingtip vortices which improves aircraft efficiency. Winglets increases the effective aspect ratio of wing by defusing the wingtip vortex shed that reduces drag ratio. This cause less fuel consumption. In this research it was ascertained that adding the winglets to the wingtip increase the aerodynamic efficient in terms of Cl/Cd. Key Words 2D Aerofoils Cl/Cd CAD in Solid works 3 D wings and Winglets Vortex CFD in STAR-CCM+ Aims and Objectives Improve the ratio of Cl/Cd of A320 wing by adding winglet at wingtip.. Improving the efficiency of the wings by modifying the winglets and Ascertaining the best performance winglet in terms of Cl/Cd. To learn the aerodynamics of aircraft wings in flowing air. Acquire the academic knowledge of designing the efficient wing model and winglets. Learning the CFD Analysis in STAR-CCM+ for different wing designs Modify winglets to improve their efficiency in Solid works and simulate in STAR-CCM+. Assess the results of this project the winglet with high efficiency in terms of Cl/Cd will be found. Methodology The research on aerodynamics, aerofoil geometry, the wing design, wingtip vortex, winglets designs, construction of wing with winglet and CFD conducted to meet the project aims. 2D Aerofoils designed and CFD analysed on different AOA. Results found NACA2411 efficient in terms of Cl/Cd. 3D model of A320 wing without winglet has designed with NACA2411. 5 A320 wings with Blended winglets and also 5 A320 wings with Ranked winglets designed in Solid works after CFD analysed in STAR-CCM+. 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 Wing without winglet Wing with Ranked winglet 1 Wing with Ranked winglet 2 Wing with Ranked winglet 3 Wing with Ranked winglet 4 Wing with Ranked winglet 5 Wing with Blended Winglet 1 Wing with Blended Winglet 2 Wing with Blended Winglet 3 Wing with Blended Winglet 4 Wing with Blended Winglet 5 Cl/Cd Cl/Cd vs Wing without winglet and Wings with different winglets