Singh, Manish K and Dhanalakshmi, K and Meenakshi, and Mathur, JS (2011) Drag divergence Mach number for NCAD-21463 Wing with 20 leading edge sweep angle. 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. NCAD (National Civil Aircraft Development) design team has designed such a wing suited for turbofan version. Drag divergence Mach number plays a major role to decide the maximum operating speed without a severe drag penalty. The in-house developed CFD Euler code JUEL3D has been used to compute the drag divergence Mach number for NCAD-21463 wing with 20 leading edge sweep back angle for lift coefficient of 0.4, 0.5 and 0.6. The drag divergence Mach number is found to be 0.74, 0.72 and 0.70 respectively for lift coefficient of 0.4, 0.5 and 0.6.
| Item Type: | Monograph (Project Report) |
|---|---|
| Subjects: | AERONAUTICS > Aerodynamics AERONAUTICS > Aircraft Design, Testing & Performance |
| Depositing User: | Mr Manish K Singh |
| Date Deposited: | 22 Feb 2011 04:38 |
| Last Modified: | 22 Feb 2011 04:38 |
| URI: | http://nal-ir.nal.res.in/id/eprint/9153 |
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