Experimental investigation of side force control on circular cones using nose blunting

Rajan Kumar, - and Viswanath, PR and Ramesh, ON (2003) Experimental investigation of side force control on circular cones using nose blunting. Project Report. National Aerospace Laboratories, Bangalore.

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    In this report, the effect of nose blunting for side force alleviation are addressed in significant detail through a systematic study. Experiments have been carried out on two cone models of semi-apex angle 8° and 12°, covering a very wide range of Reynolds number (based on the base diameter) from 0 .4 x 106 to 5 .4 x 106 at low speeds. On each cone model, the nose bluntness ratio was varied from 0% (sharp cone) upto 20% (based on the base diameter). Accurate six-component balance measurements have been made over a range of angle of attack upto 45° . Surface pressure distributions on the 12° cone model have been made in order to gain a better understanding of cross-flow features and bluntness effects . Surface flow visualization has been carried out to provide information on the structure of the cross-flow separation including type of separation (laminar, transition and turbulent).

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: Circular cones, Nose blunting, Side force control, Vortex asymmetry
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: National Trisonic Aerodynamic Facilities, Experimental Aerodynamics Division, Other
    Depositing User: Smt Bhagya Rekha KA
    Date Deposited: 10 Apr 2012 16:15
    Last Modified: 10 Apr 2012 16:15
    URI: http://nal-ir.nal.res.in/id/eprint/10425

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