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Turbulence Models and the Synthesis of Random Fields for Acoustic Wave Propagation Calculations
Turbulence Models and the Synthesis of Random Fields for Acoustic Wave Propagation Calculations Author:D. Keith Wilson This is a ARMY RESEARCH LAB ADELPHI MD report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A384253. The abstract provided by the Pent... more »agon follows: A comprehensive set of equations is derived for correlations and spectra of atmospheric turbulence, useful for wave propagation calculations and other applications. Three basic turbulence models are considered: (1) the Gaussian, (2) von Karman, and (3) Kolmogorov models. Two extended forms of the von Karman model are also described: the Mann model for a shear driven atmospheric surface layer, and the Hunt/Graham/Wilson model for a convective boundary layer. A new method for synthesizing random fields from an inhomogeneous spectral model, called the generalized random phase method, is described and applied to the various turbulence models.« less