Unsteady Pressure Measurements On 1 :40 Scale GSLV Heat Shield Model

Rajan Kumar, - and Sundaramurthy, H and Prasada Rao, K (1997) Unsteady Pressure Measurements On 1 :40 Scale GSLV Heat Shield Model. Project Report. National Aerospace Laboratories, Bangalore.

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    Abstract

    Wind tunnel measurements were carried out on a 1:40 scale model of GSLV configuration to measure unsteady pressures in the heat shield region of the model in the 1.2m tunnel at NAL. This document gives a brief description of the experiments highlighting several techniques adopted to obtain accurate unsteady pressure data. Typical results on steady and unsteady pressure distribution are briefly discussed . Pressure fluctuation levels are highest near the reattachment point. Spectra are generally of broadband type without any dominant peak and nearly 80 to 90% of the energy of pressure fluctuation was contained within 0-5KHz of frequency range.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: GSLV, Heat shield, Pressure fluctuations, Unsteady pressures
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: National Trisonic Aerodynamic Facility, National Trisonic Aerodynamic Facility, National Trisonic Aerodynamic Facility
    Depositing User: Smt Bhagya Rekha KA
    Date Deposited: 19 Jul 2012 10:26
    Last Modified: 19 Jul 2012 10:26
    URI: http://nal-ir.nal.res.in/id/eprint/10512

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