Aerodynamic noise from wave-turbulence interaction

  • A. L. Chandraker
  • M. L. Munjal


In order to estimate the acoustic energy scattered when a unit volume of free turbulence, such as in free jets, interacts with a plane steady sound wave, theoretical expressions are derived for two simple models of turbulence: eddy model and isotropic model. The effect of convection by mean motion of the energy-bearing eddies on the incident sound wave and on the sound generated from wave-turbulence interaction is taken into account. Finally, by means of a representative calculation, the directionality pattern and Mach number dependence of the noise so generated is discussed.


Aeroacoustics aerodynamic noise wave-turbulence interaction 


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Copyright information

© Indian Academy of Sciences 1978

Authors and Affiliations

  • A. L. Chandraker
    • 1
  • M. L. Munjal
    • 1
  1. 1.Department of Mechanical EngineeringIndian Institute of ScienceBangalore

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