Characterization of RTA 21463 Wing and Estimation of Drag divergence Mach number

Singh, Manish K and Dhanalakshmi, K and Mathur, JS (2011) Characterization of RTA 21463 Wing and Estimation of Drag divergence Mach number. Project Report. CSIR-NAL, Bangalore.

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Abstract

CSIR-NAL has started preliminary work on design of 70- 90-seater civilian aircraft that is suitable for Indian conditions and can operate from airports having minimum infrastructure facilities. This aircraft should be at least on par with the aircraft presently available in market in terms of efficiency, speed and quietness to remain competitive. RTA (Regional Transport Aircraft) design team has designed such a wing suited for turbofan version. Drag divergence Mach number plays a major role to arrive the maximum operating speed without a severe drag penalty. The in-house developed CFD Euler code JUEL3D has been used to characterize RTA 21463 wing and also to estimate drag divergence Mach number for lift coefficient of 0.4, 0.5 and 0.6. The drag divergence Mach number is found to be 0.72, 0.71 and 0.69 respectively for lift coefficient of 0.4, 0.5 and 0.6.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Drag divergence Mach number, wave drag, Drag coefficient, RTA-21463 wing
Subjects: AERONAUTICS > Aerodynamics
AERONAUTICS > Aircraft Design, Testing & Performance
Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
Depositing User: Mr Manish K Singh
Date Deposited: 14 Sep 2012 10:19
Last Modified: 14 Sep 2012 10:19
URI: http://nal-ir.nal.res.in/id/eprint/10941

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