Passive devices for axisymmetric base drag reduction at transonic speeds

Viswanath, PR (1988) Passive devices for axisymmetric base drag reduction at transonic speeds. Journal of Aircraft, 25 . pp. 258-262. ISSN 0021-8669

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    Abstract

    Experiments have been made to assess the effectiveness of several base modifications or passive devices for reducing base drag and total 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 relatively lower, presumably because of the additional losses associated with the devices. (Author)

    Item Type: Journal Article
    Additional Information: Copyright for this article belongs to AIAA
    Uncontrolled Keywords: Aerodynamic drag;Afterbodies;Drag reduction;Transonic flight cavities;Stagnation pressure;Transonic wind tunnels;Wind tunnel tests
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Experimental Aerodynamics Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 08 Mar 2010
    Last Modified: 07 Jun 2010 12:37
    URI: http://nal-ir.nal.res.in/id/eprint/4381

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