Enhancement of Aerodynamic Efficiency of Aerofoil Using Improved Blowing and Suction System

• Autorzy: Balaji K. , Wessley G. Jims John

Identyfikatory

DOI

10.12913/22998624/134642

• Języki publikacji: EN

Abstrakty

EN

Improved Blowing and Suction System (IBSS) is a novel concept that can be effectively implemented in future aircraft to improve the aerodynamic performance of aircraft wings. The proposed IBSS consists of a regular wing without its secondary control surfaces and with a Pump. The injection and suction system is used to create additional flow without disturbing the main flow over the aerofoil which effectively delays the boundary layer separation. The injection and suction areas are kept constant and they are located just below the maximum thickness point and suction is created close to the trailing edge. This paper presents a detailed numerical analysis of the proposed IBSS and the study shows that the stalling angle of attack is increased by 60% while the coefficient of lift is increased 37.5% compared to the baseline aerofoil. Also, the commercially used coflow jet (CFJ) method stalls at a 12° angle of attack whereas with the proposed IBSS method the stall occurs at a 16° angle of attack. The stalling angle is thus delayed by 33%, thus increasing the aerodynamic performance of the wing as compared to the existing methods. Also, any malfunction in IBSS does not significantly affect the performance of the aircraft. The implementation of IBSS will lead to a reduction in the weight of the aircraft and the elimination of secondary control surfaces.

Słowa kluczowe

EN

Co flow jet; Improved blowing and suction system; aerodynamic efficiency; stalling angle; control surfaces; secondary flow

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2021
• Tom: Vol. 15, no 2
• Strony: 116--126
• Opis fizyczny: Bibliogr. 10 poz., fig., tab.

Twórcy

autor

Balaji K.

• Karunya Institute of Technology and Sciences, Coimbatore, Tamilnadu, India
• Department of Aeronautical Engineering, Sanjay Ghodawat University, Kolhapur, Maharashtra, India

autor

Wessley G. Jims John

• Karunya Institute of Technology and Sciences, Coimbatore, Tamilnadu, India

• https://orcid.org/0000-0001-9009-153X

Bibliografia

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• 2. Zha G.C., Paxton C., Novel flow control method for airfoil performance enhancement using co-flow jet. In: Applications of Circulation Control Technology 2006, 293–314. https://doi.org/10.2514/5.9781600 866838.0293.0314.
• 3. Lefebvre A., Zha G.C., Co-flow jet airfoil trade study, Part I: Energy consumption and aerodynamic efficiency. In: Proc. of the 32nd AIAA Appl. Aerodyn. Conf. 2014, 1–20. https://doi. org/10.2514/6.2014-2682.
• 4. Zha G.C., Gao W., Paxton C., Gables C., Numerical simulation of co-flow jet airfoil flows. Proc. of the. 44th AIAA Aerospace Sciences Meeting and Exhibit, 2006, 1–11.
• 5. Zha G.C., Carroll B.F., Paxton C.D, Conley C.A, Wells A., High-performance airfoil using coflow jet flow control. AIAA Journal, 2007, 45(8), 1–27. https://doi.org/10.2514/1.20926
• 6. Hossain M.A., Uddin M.N., Islam M.R., Mashud M. Enhancement of aerodynamic properties of an airfoil by co flow jet. American Journal of Engineering Research. 2015, 4(1), 103–112.
• 7. Lefebvre A., Dano B., Bartow W.B., Fronzo M.D., Zha G.C. Performance and energy expenditure of coflow jet airfoil with variation of mach number. Journal of Aircraft. 2016, 53(6), 1757–1767. https://doi.org/10.2514/1.c033113.
• 8. Balaji K., Wessley G.J.J. Experimental investigations on the performance of a modified co-flow jet aerofoil. Indian Journal of Science and Technology, 2020, 13, 1873-1881. 10.17485/IJST/v13i19.85.
• 9. Lefebvre A., Zha G.C., Trade study of 3D co-flow jet wing for cruise and takeoff/landing performance. In: Proc. of the 54th AIAA Aerosp. Sci. Meet., 2016, 1–29. https://doi.org/10.2514/6.2016-0570.
• 10. Dano B.P.E., Kirk D., Zha G.C. Experimental investigation of jet mixing mechanism of a co-flow jet airfoil. In: Proc. of the 5th AIAA Flow Control Conference, 2010. https://doi. org/10.2514/6.2010-4421.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).