PIV investigation of self-adaptive flap on low aspect ratio wings

Arivoli, D and Singh, Ishan and Suriyanarayanan, P (2017) PIV investigation of self-adaptive flap on low aspect ratio wings. In: AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting, 9 - 13 January 2017, Grapevine, Texas.

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Abstract

Self-adaptive flap is a bio-inspired passive flow control device which emulates the covert feathers of birds in a most rudimentary form to delay flow separation. In a previous study, it was found that the use of self-adaptive flap on low aspect ratio wings at low Reynolds numbers increased the CLmaxand stall margin by more than 30%. In an effort to gain insight on the flow-field changes the self-adaptive flap effects on the suction surface of the wing with respect to its placement location, oil flow visualization and a two-dimensional particle image velocimetry (PIV) investigation werecarried out on low aspect ratio flat plate wings of rectangular, Zimmerman, and inverse Zimmerman planform at a Reynolds number of 105. The 2D-PIV investigations werecarried out on the mid span plane of the models. This paper reports the some of the pertinent results obtained from the investigation.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	ENGINEERING > Fluid Mechanics and Thermodynamics ENGINEERING > Mechanical Engineering
Depositing User:	Mrs SK Pratibha
Date Deposited:	25 Feb 2020 14:27
Last Modified:	25 Feb 2020 14:27
URI:	http://nal-ir.nal.res.in/id/eprint/13236

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