Effect of Roll Angle Configurations of a Reverse Delta Type Add-on Device on Wing Tip Vortex Alleviation

Afaq Altaf; Mohammed Abdulmalek Mohammed Aldheeb; Ashraf Ali Omar; Waqar Asrar

doi:10.37934/cfdl.16.4.120133

Authors

Afaq Altaf 42 Abu Dhabi, Abu Dhabi, UAE
Mohammed Abdulmalek Mohammed Aldheeb Department of Mechanical and Aerospace Engineering, International Islamic University Malaysia (IIUM), Kuala Lumpur, Malaysia
Ashraf Ali Omar School of Aerospace and Automotive Engineering, International University of Rabat, Recade Rabat-sale, Sala El Jedida, Morocco
Waqar Asrar Department of Mechanical and Aerospace Engineering, International Islamic University Malaysia (IIUM), Kuala Lumpur, Malaysia

DOI:

https://doi.org/10.37934/cfdl.16.4.120133

Keywords:

Add-on device, Vortex, PIV, Wing tip

Abstract

An add-on device in the shape of a reverse delta has shown the ability to alleviate wake vortices. The present work studies the interaction of the wing tip vortex and the reverse delta type add-on device vortices. This paper looks at the vortex interactions generated downstream of the wing tip in planes perpendicular to the free stream direction and their dependence on roll angles φ at a mean chord-based Reynolds number of Rec=2.75×105. The study reveals that the add-on device causes a reduction in the tangential velocity V and vorticity of the resultant vortex by up to 44.1% and 59.4%, respectively. Also, it is found that the resultant vortex core radius increased by 305%. The results indicate that the reverse delta type add-on device implants countersign vorticity into the wing tip vortex and modifies its roll-up process.

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Author Biographies

Afaq Altaf, 42 Abu Dhabi, Abu Dhabi, UAE

afaqaltaf@hotmail.com

Mohammed Abdulmalek Mohammed Aldheeb, Department of Mechanical and Aerospace Engineering, International Islamic University Malaysia (IIUM), Kuala Lumpur, Malaysia

aldheeb@iium.edu.my

Ashraf Ali Omar, School of Aerospace and Automotive Engineering, International University of Rabat, Recade Rabat-sale, Sala El Jedida, Morocco

ashraf_omar@uir.ac.ma

Waqar Asrar, Department of Mechanical and Aerospace Engineering, International Islamic University Malaysia (IIUM), Kuala Lumpur, Malaysia

waqar@iium.edu.my

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