The Influence of a Forward Splitter Plate on Base Pressure and Drag of Wedges

Kumar, Rajeev and Viswanath, PR (1997) The Influence of a Forward Splitter Plate on Base Pressure and Drag of Wedges. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    Experiments have been performed to assess the base and total drag13; reduction due to a forward splitter plate (FSP) on two wedge models13; having semi-apex angle of 12 and 30 deg.13; Two splitter plates13; having a length of H and 3.2H (where H represents the base height)13; respectively were used.13; The13; Reynolds number of 4 x 1.0 and13; tests were made at a subcritical13; the wake survey method was utilised13; tQ determine the total drag. The results show virtually no change13; in base pressure due to FSP on both the models. The total drag on13; the other hand was about 9 and 4% lower for the 30 and 12 deg.13; wedges respectively for the optimum splitter plate.length equal to13; the base height. It is suggested that the observed drag reduction13; is due to lower -surface pressures associated with separated flow13; in the nose region.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Forward Splitter Plate;Total drag Base pressure
    Subjects: AERONAUTICS > Aircraft Stability and Control
    Division/Department: Experimental Aerodynamics Division, Experimental Aerodynamics Division
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 09 May 2006
    Last Modified: 24 May 2010 09:41
    URI: http://nal-ir.nal.res.in/id/eprint/1272

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