Effect of Anhedral–Dihedral Angles on 76-40° Double-Delta Wing at Low Speeds
Publication: Journal of Aerospace Engineering
Volume 32, Issue 6
Abstract
Experimental and computational investigations were performed on a 76-40° sweep double-delta wing (DDW) at different angles of attack corresponding to a Reynolds number of 220,000 based on chord length. Experiments consisted of the measurements of forces and moments and surface flow visualization using oil flow technique. Effect of the anhedral and dihedral angles over a DDW was obtained. Results indicated that the use of small anhedral angle compels the vortices to move inward and helps in the augmentation of the lift at higher angles of attack in comparison with the case of nonplanar and dihedral angles. Reasonable agreement of experiments and computation was observed.
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Published In
Journal of Aerospace Engineering
Volume 32 • Issue 6 • November 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Sep 18, 2017
Accepted: May 8, 2019
Published online: Aug 13, 2019
Published in print: Nov 1, 2019
Discussion open until: Jan 13, 2020
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