Estimation of Broadband Shock Noise Reduction in Turbulent Jets by Water Injection | Zendy

Max Kandula | Zendy; Michael Lonergan | Zendy

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Estimation of Broadband Shock Noise Reduction in Turbulent Jets by Water Injection

Author(s) -

Max Kandula,

Michael Lonergan

Publication year - 2008

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2008-3064

Subject(s) - broadband , reduction (mathematics) , noise reduction , turbulence , shock (circulatory) , noise (video) , estimation , acoustics , computer science , physics , mechanics , telecommunications , mathematics , engineering , medicine , artificial intelligence , geometry , image (mathematics) , systems engineering

The concept of effective jet properties introduced by the authors (AIAA-2007-3645) has been extended to the estimation of broadband shock noise reduction by water injection in supersonic jets. Comparison of the predictions with the test data for cold underexpanded supersonic nozzles shows a satisfactory agreement. The results also reveal the range of water mass flow rates over which saturation of mixing noise reduction and existence of parasitic noise are manifest.

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