Effect of heating on sound radiated from a two-dimensional mixing layer
Jambunathan, Revathi
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https://hdl.handle.net/2142/42212
Description
Title
Effect of heating on sound radiated from a two-dimensional mixing layer
Author(s)
Jambunathan, Revathi
Issue Date
2012-12
Director of Research (if dissertation) or Advisor (if thesis)
Bodony, Daniel J.
Department of Study
Aerospace Engineering
Discipline
Aerospace Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Sound radiated
instability wave
mixing layer
Heating
multiple scale expansion
critical layer
directivity
Abstract
The effect of heating on sound radiated by instability waves in a two-dimensional mixing layer is studied. A linear stability theory coupled with linearized Euler calculations are used to compute the amplitude of the instability wave and its associated sound field. The linear stability analysis also identifies the point of neutral stability for the spatially growing instability wave. It is observed that the mixing layer becomes quieter with increase in heating.
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