Numerical study of the flow over symmetrical airfoils with ground effects

Abdullah, Aslam and Suresh, Surendran and Mohd Saleh, Siti Juita Mastura and Zulkafli, Mohd Fadhli and Abdul Ghafir, Mohammad Fahmi (2019) Numerical study of the flow over symmetrical airfoils with ground effects. International Journal of Mechanical Engineering and Technology (IJMET), 10 (4). pp. 1106-1113. ISSN 0976-6340

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Abstract

The paper presents the ground effects on the flow over five NACA symmetrical airfoils by analyzing the coefficients of lift. The unbounded flow over a selected airfoil was first simulated, and the results were validated against the established data in order to validate the method used in obtaining the lift coefficients. In the presence of ground, we kept the angle of attack to be constantly zero throughout the computations. Ground clearances were set based on those for aircrafts whose wing cross sections are the airfoils of interest. ANSYS was used for such numerical computations. We illustrate percentage increment of lift that is inversely proportional to the ground clearance. This work sheds insight on the important parameters that need to be taken into account in the operational of an aircraft.

Item Type:	Article
Uncontrolled Keywords:	Aerodynamics; ground clearance; ground effects; lift coefficient; symmetrical airfoils
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500-777 Aeronautics. Aeronautical engineering
Divisions:	Faculty of Mechanical and Manufacturing Engineering > Department of Aeronautical Engineering
Depositing User:	Miss Afiqah Faiqah Mohd Hafiz
Date Deposited:	07 Dec 2021 08:31
Last Modified:	07 Dec 2021 08:31
URI:	http://eprints.uthm.edu.my/id/eprint/4607

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