Tests on 3 NACA 0012 airfoil models of DFVLR in the NAL 0.3m tunnel: An assessment of 2-D wall interference

Gopinath, R and Santha, Kumari and Sridharan, R (1987) Tests on 3 NACA 0012 airfoil models of DFVLR in the NAL 0.3m tunnel: An assessment of 2-D wall interference. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    Tests were conducted on three NASA 0012 airfoil models. A range of Mach numbers from 0.6 to 0.9 and incidence of the model from 0 degrees to 7 degrees with both free and fixed transition on the airfoil model, was covered. Flow visualization studies were also carried out at a few Mach numbers and incidence. Interference corrections were computed from wall pressures measured along the slat on the top and bottom liners of the modified test section and the corrected data compared with those from other tunnels. An analysis of the data on the three models of chord lengths 100mm, 150mm and 200mm respectively, from the standpoint of interference due to tunnel walls, is presented.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Aerodynamic interference;Airfoils;Wall pressure;Wind tunnel tests;Comparison;Flow visualization;Incidence;Mach numbers; Models
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Aerodynamics, Aerodynamics
    Depositing User: M/S ICAST NAL
    Date Deposited: 06 Nov 2006
    Last Modified: 24 May 2010 09:52
    URI: http://nal-ir.nal.res.in/id/eprint/3134

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