Buffet tests on 1/20 scale lca model with leading edge slats at transonic speeds

Patil, SR (1994) Buffet tests on 1/20 scale lca model with leading edge slats at transonic speeds. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

Buffet measurements have been made on the 1120 scale LCA model (stage 6.45 V 35) with full leading edge slat at transonic speeds in the 1.2m tunnel. Unsteady signals from wing-root strain gauges have been measured and the response at the first wing bending frequency has been utilized for the determination of buffet characteristics. Mabey's technique has been employed to estimate buffeting coefficients at different Mach numbers. Significant reductions in the maximum buffet levels have been found in the presence of leading edge slats, confirming the results obtained from Calspan tests.

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Buffet characteristics, Transonic manoeuverability
Subjects: AERONAUTICS > Aerodynamics
Depositing User: Smt Bhagya Rekha KA
Date Deposited: 19 Jul 2012 04:55
Last Modified: 19 Jul 2012 04:55
URI: http://nal-ir.nal.res.in/id/eprint/10514

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