For vibro-acoustic applications, a turbulent wall pressure (TWP) fluctuations model was derived. The model is based on the resolution of Poisson's equation. The pressure is characterized in time and space through its spectrum in the frequency wave-number domain. The developed model follows trends commonly observed using Corcos model in a large frequency range but also shows new behaviors for low and high frequencies. The radiated noise due to TWP fluctuations is then computed in accordance with the form of the TWP spectrum. A specific computational methodology is proposed to perform the calculation without introducing limiting hypothesis on the radiated impedance.
A Unified Methodology to Evaluate the Radiated Noise Due to Turbulent Boundary Layer Flows
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received April 26, 2018; final manuscript received September 25, 2018; published online December 12, 2018. Assoc. Editor: Samuel Paolucci.
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Morilhat, S., Chedevergne, F., and Simon, F. (December 12, 2018). "A Unified Methodology to Evaluate the Radiated Noise Due to Turbulent Boundary Layer Flows." ASME. J. Fluids Eng. June 2019; 141(6): 061201. https://doi.org/10.1115/1.4041611
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