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Farfield viscous effects in nonlinear noise propagation (1974)

Harris, W. L., Sr.

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Publication Date: 2019-06-27

Description: Discussion of the method of parametric differentiation in application to predictions of farfield noise propagation in both lossless and dissipative media. It is shown that, in the lossless medium, the governing equation, transformed to parameter space, reduces to a wave equation in the farfield. In the dissipative medium, the system of nonlinear partial differential equations, transformed to parameter space, reduces to a linear partial differential equation of the propagating type which contains a third-order derivative as well as the wave operator.

Keywords: AERODYNAMICS

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