Modelling of the nonlinear lift and pitching moment characteristics of 60-degree delta wing and wing-bodies

Rajamurthy, MS (2002) Modelling of the nonlinear lift and pitching moment characteristics of 60-degree delta wing and wing-bodies. In: AIAA Atmospheric Flight Mechanics Conference and Exhibit, 5-8 Aug 2002, Monterey, California, United States.

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Abstract

The modelling of the nonlinear lift and pitching moment characteristics of 60 degree delta wings and wing-bodies is addressed. Using experimentally measured lift data of a 60 degree delta wing, the applicability of mathematical models proposed in the literature for sharp-edged delta wings is examined and an alternate simple model structure is proposed. Based on this, models for the lift and pitching moment characteristics of a 60 degree delta wing-body are developed using experimental data. This lift model structure is extended to incorporate the effect of trailing edge control surfaces and models fitted to the experimental data of a 60 degree delta wing-body with trailing edge control surface. The proposed model structure is able to characterize quite accurately the nonlinear lift and pitching moment characteristics of 60 degree delta wing/wing-body and simplifies to a classical derivative model at low angles of attack.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Copyright belongs to AIAA
Uncontrolled Keywords: Delta wings;Body-wing configurations;Lift;Mathematical models;Pitch (Inclination);Stability derivatives;Trailing edges;Control surfaces;Sharp leading edges
Subjects: AERONAUTICS > Aircraft Stability and Control
AERONAUTICS > Aerodynamics
Division/Department: Flight Mechanics and Control Division
Depositing User: Mr. Ravikumar R
Date Deposited: 06 Sep 2006
Last Modified: 24 May 2010 09:50
URI: http://nal-ir.nal.res.in/id/eprint/2618

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