Numerical investigation of the vortical flow over delta wing and reverse delta wing

Omar, Ashraf Ali E. and Jamaluddin, Hani Ludin and Asrar, Waqar (2012) Numerical investigation of the vortical flow over delta wing and reverse delta wing. In: 6th International Conference on Advanced Computational Engineering and Experimenting (ACE-X2012), 1-4 July 2012, Istanbul, Turkey. (Unpublished)

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Abstract

This study aims to give some thoughts and initial understanding of passive wake vortex alleviation by introducing add-ons devices onto the aircraft, which are delta wing (DW) and reverse delta wing (RDW). However, as a preliminary investigation, the study has treated these devices separately from the aircraft in order to clearly visualize the wake vortex formation behind the wing as a standalone. Numerical simulations were performed for both DW and RDW at various angles of attack to investigate the characteristics of the vortices generated downstream. These vortices were investigated in terms of velocity vectors with its magnitude, vorticity contours, circulation distribution and streamlines. The results showed that as the angle of attack increases, the vorticity magnitude and circulation increase for both DW and RDW vortices. But RDW vortex exhibited a lower magnitude compared to DW vortex at angle of attack of 20º and 30º. It is also observed that delta wing (DW) generates stronger wake vortices with greater peak velocity than the wake vortices generated by reverse delta wing (RDW)

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	4441/26780
Uncontrolled Keywords:	Delta wing, Reverse Delta wing, wake, vortex, vortex alleviation
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Ashraf Omar
Date Deposited:	04 Jan 2013 10:49
Last Modified:	04 Jan 2013 10:49
URI:	http://irep.iium.edu.my/id/eprint/26780

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