每年出版 6 期
ISSN 打印: 2152-5102
ISSN 在线: 2152-5110
Indexed in
Numerical Study of the Effect of Geometrical Changes on the Airfoil Aerodynamic Performance
摘要
In this article, numerical and two dimensional study flow field around NACA0012 airfoil with making geometrical changes is discussed. In order to investigate geometrical changes on airfoil and its effect on aerodynamic performance of the airfoil, design of making step on airfoil have studied. For this purpose, once step at upper surface and once simultaneously at both sides upper and lower surfaces of the airfoil, have considered. The calculations were performed at Reynolds number of 160000 and lift and drag coefficients and lift to drag ratio at stepped airfoils with unmodified NACA0012 airfoil is compared. Also streamlines and separation of flow around airfoils and stall angle have discussed. Results indicate significant changes in airfoil aerodynamic performance as with making step at upper surface airfoil stall angle is delayed and lift to drag ratio is increased at some angles of attack. Also with making step at both sides upper and lower surfaces of the airfoil, lift coefficient increased compare to airfoil without step, especially at low angles of attack.
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Kamyab Matin Reza, Ghassemi Hojat, Ebrahimi Abbas, Ghasemi Bahman, Experimental study of flow field on stepped airfoil at very low Reynolds number, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 231, 9, 2017. Crossref
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Abdullah Syed Muhammad, Abdullah Ali, Shehzad Muhammad Asim, Khalid Muhammad Saif Ullah, Aerodynamics of a flying wing UAV with backward facing stepped wing profile, 2017 14th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2017. Crossref
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Yang Lu, Zhang Guangming, An Effective Simulation Scheme for Predicting the Aerodynamic Heat of a Scramjet-Propelled Vehicle, Applied Sciences, 11, 19, 2021. Crossref
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Yang Lu, Zhang Guangming, Analysis of Influence of Different Parameters on Numerical Simulation of NACA0012 Incompressible External Flow Field under High Reynolds Numbers, Applied Sciences, 12, 1, 2022. Crossref