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      https://www.ias.ac.in/article/fulltext/sadh/029/04/0389-0400

    • Keywords

       

      Acoustic noise; jet noise; source strength distribution

    • Abstract

       

      Source strength distribution on a jet boundary was obtained from measurements using the principle of acoustic holography. Measurements were conducted in an open field. Measurement of acoustic pressure on a cylindrical two-dimensional contour located close to the vibrating jet boundary was used to obtain the acoustic source strength distribution at the jet boundary. Particular attention was focussed on back projection of the sound field on to a cylindrical surface. A jet emanating from 5 mm convergent nozzle was used for the holography experiments, assuming axisymmetry. Experimental results were compared with results obtained from holography

    • Author Affiliations

       

      G Pundarika1 R Lakshminarayana2 T S Sheshadri2

      1. Department of Mechanical Engineering, BMS College of Engineering, Bangalore - 560 019, India
      2. Department of Aerospace Engineering, Indian Institute of Science, Bangalore - 560 012, India
    • Dates

       
  • Sadhana | News

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