Non-nulling calibration of a two-dimensional combination wedge probe

Nagpurwala, QH (1987) Non-nulling calibration of a two-dimensional combination wedge probe. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    This report describes the non-nulling calibration of a13; typical, two dimensional, combination wedge probe used in13; turbo machinery testing and analysis the calibration13; characteristics in detail. The calibration was carried out in a 0;lm x 0 . 2 5 m cross-section Induction Tunnel over a subsonic Mach number range of 0.1 i M lt;: 0.7 and a yaw angle range of -FA to +20 . Calibration data has been plotted in terms of non dimensional parameters composed of true total and static pressures and the pressures read by the probe orifices. A procedure, based upon the successive Iteration among the calibration curves, is described .for obtaining the t.rue flow 1x2019;. parameters from the measured probe pressures in an unknown flow field. x2019; BASIC x2019; language programmes and subroutines, which run on MACSYM 150 desk-top computer and a NPS-6 digital intelligent plotter are explained for.plotting the calibration parameters, polynomial curve fitting and for computing the true flow parameters.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Combination wedge probe;Probe calibration
    Subjects: AERONAUTICS > Aircraft Propulsion and Power
    Division/Department: Propulsion Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 13 Nov 2006
    Last Modified: 24 May 2010 09:53
    URI: http://nal-ir.nal.res.in/id/eprint/3396

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