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Observations of hysteresis and broad flow features on a swept wing at high-lift

IR@NAL: CSIR-National Aerospace Laboratories, Bangalore

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Title Observations of hysteresis and broad flow features on a swept wing at high-lift
 
Creator Venkatakrishnan, L
Sundaram, S
Viswanath, PR
 
Subject Aerodynamics
 
Description Experiments have been performed at low speeds documenting certain broad aspects of hysteresis on a mildly swept wing under high-lift conditions. Aerodynamic load measurements were carried out at two values of incidence of 10.5o and 15.5o and flap deflections of 20o and 30o, essentially under quasi-steady conditions. Two-dimensional PIV was utilized to measure the mean velocity vector field in the rear part of the wing and flap. These velocity measurements have revealed certain complex nature of separated flows on the wing and flap. Also, in general, the slot flow angle determined by geometric considerations is very different from those actually inferred from PIV measurements.
 
Publisher National Aerospace Laboratories
 
Type Proj.Doc/Technical Report
NonPeerReviewed
 
Format application/pdf
 
Identifier http://nal-ir.nal.res.in/9933/1/PD_EA_0503.pdf
Venkatakrishnan, L and Sundaram, S and Viswanath, PR Observations of hysteresis and broad flow features on a swept wing at high-lift. Project Report. National Aerospace Laboratories, Bangalore.
 
Relation http://nal-ir.nal.res.in/9933/