Viswanath, PR (1985) Investigation of passive devices for axisymmetric base13; drag reduction at transonic speeds. Technical Report. National Aeronautical Laboratory, Bangalore, India.
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Abstract
Experiments have been made to assess the effectiveness of13; several base modifications for reducing base drag and total13; afterbody drag at transonic speeds. The modifications tested include base cavities, ventilated cavities and two vortex suppression devices. Results show that, while appreciable base drag reductions are possible with many of the devices examined, the net total drag reductions are lower, presumably because of the additional losses associated with the devices.
| Item Type: | Proj.Doc/Technical Report (Technical Report) |
|---|---|
| Uncontrolled Keywords: | Base drag;Passive devices;Drag reduction |
| Subjects: | AERONAUTICS > Aerodynamics |
| Division/Department: | Aerodynamics |
| Depositing User: | M/S ICAST NAL |
| Date Deposited: | 29 Aug 2006 |
| Last Modified: | 24 May 2010 09:49 |
| URI: | http://nal-ir.nal.res.in/id/eprint/2596 |
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