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Aeroacoustics of Low Mach Number Flows by William Devenport, Stewart Glegg

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9

Turbulent flows

Abstract

Predictions of sound radiated as a result of the unsteady motions of a turbulent flow require estimates of the two-point space-time correlations of those flows, or their spectral equivalents. In practice these estimates are usually obtained using models developed for homogeneous and isotropic turbulence, and scaling or otherwise modifying those models to match the inhomogeneous and anisotropic reality of the application in question. The fundamental knowledge needed to do this, including the properties of homogeneous isotropic turbulence and of the most important turbulent shear flows for aeroacoustics at low Mach number, is the topic of this chapter.

Keywords

Turbulent flows; Homogeneous turbulence; Turbulent boundary ...

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