Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils

Over the years, the effects of vortex formation on the aerodynamic performance of airfoils have served as motivation for many research studies. This study takes into account NACA 4412 and NACA 4424 which are cambered airfoils. The simulations performed involve low Reynolds number air flow over the a...

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Main Authors: Hadi, Muhammad Irfan, Nazri, Mohd., Abdullah, Aslam
Format: Article
Language:English
Published: Asian Research Publishing Network (ARPN) 2020
Subjects:
Online Access:http://eprints.uthm.edu.my/4977/1/AJ%202020%20%2857%29.pdf
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author Hadi, Muhammad Irfan
Nazri, Mohd.
Abdullah, Aslam
author_facet Hadi, Muhammad Irfan
Nazri, Mohd.
Abdullah, Aslam
author_sort Hadi, Muhammad Irfan
collection UTHM
description Over the years, the effects of vortex formation on the aerodynamic performance of airfoils have served as motivation for many research studies. This study takes into account NACA 4412 and NACA 4424 which are cambered airfoils. The simulations performed involve low Reynolds number air flow over the airfoils at several angles of attack. Main attention is given on the separation bubble and vortex shedding phenomena, and the effects of vortex formation on airfoils’ aerodynamic performance as represented by lift and drag coefficients. Apparently, the vortex-influenced velocity curl shows alternating vortex formation along the airfoils’ surfaces and at down streams. Also, the angles of attack influence such formation by developing specific separation bubbles with contrasting fixed points, in particular those along the airfoils’ surfaces.
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spelling uthm.eprints-49772022-01-03T02:31:06Z http://eprints.uthm.edu.my/4977/ Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils Hadi, Muhammad Irfan Nazri, Mohd. Abdullah, Aslam T Technology (General) TL500-777 Aeronautics. Aeronautical engineering Over the years, the effects of vortex formation on the aerodynamic performance of airfoils have served as motivation for many research studies. This study takes into account NACA 4412 and NACA 4424 which are cambered airfoils. The simulations performed involve low Reynolds number air flow over the airfoils at several angles of attack. Main attention is given on the separation bubble and vortex shedding phenomena, and the effects of vortex formation on airfoils’ aerodynamic performance as represented by lift and drag coefficients. Apparently, the vortex-influenced velocity curl shows alternating vortex formation along the airfoils’ surfaces and at down streams. Also, the angles of attack influence such formation by developing specific separation bubbles with contrasting fixed points, in particular those along the airfoils’ surfaces. Asian Research Publishing Network (ARPN) 2020 Article PeerReviewed text en http://eprints.uthm.edu.my/4977/1/AJ%202020%20%2857%29.pdf Hadi, Muhammad Irfan and Nazri, Mohd. and Abdullah, Aslam (2020) Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils. ARPN Journal of Engineering and Applied Sciences, 15 (1). pp. 27-33. ISSN 1819-6608
spellingShingle T Technology (General)
TL500-777 Aeronautics. Aeronautical engineering
Hadi, Muhammad Irfan
Nazri, Mohd.
Abdullah, Aslam
Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
title Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
title_full Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
title_fullStr Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
title_full_unstemmed Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
title_short Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
title_sort vortex formation in unsteady flow over naca 4412 and naca 4424 airfoils
topic T Technology (General)
TL500-777 Aeronautics. Aeronautical engineering
url http://eprints.uthm.edu.my/4977/1/AJ%202020%20%2857%29.pdf
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AT abdullahaslam vortexformationinunsteadyflowovernaca4412andnaca4424airfoils