Spherical nonlinear wave propagation in a dissipative stratified atmosphere (Q1205387)
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scientific article; zbMATH DE number 147208
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Spherical nonlinear wave propagation in a dissipative stratified atmosphere |
scientific article; zbMATH DE number 147208 |
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Spherical nonlinear wave propagation in a dissipative stratified atmosphere (English)
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1 April 1993
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Nonlinear acoustic wave propagation is considered, for a signal which is initially sinusoidal at the input radius, subject to the effects of spherical spreading, exponential density stratification with altitude, and thermoviscous dissipation. A model equation is derived giving the signal variation along each straight line ray from the centre of symmetry, and in the form of a generalized Burgers equation. This equation is studied in the small-dissipation limit.
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spherical spreading
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exponential density stratification
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thermoviscous dissipation
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ray
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generalized Burgers equation
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small-dissipation limit
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