The Use of the Parabolic Equation Method in Sound Propagation Modelling PDF Download

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The Use of the Parabolic Equation Method in Sound Propagation Modelling

The Use of the Parabolic Equation Method in Sound Propagation Modelling PDF Author: Finn Jensen
Publisher:
ISBN:
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Languages : en
Pages : 50

Book Description
The parabolic equation method (PE method) is the latest major development in the field of acoustic modelling. A detailed description of the derivation of the parabolic equation from the wave equation is given together with a description of a marching solution technique based on Fast Fourier Transforms (FFT). Limitations on the method in terms of allowable step length in range, number of FFT points to be used, and restrictions on pressure field behaviour in order to obtain a stable solution, are mentioned. Furthermore, numerical examples of propagation predictions are given for both shallow and deep water cases, with and without bottom absorption, and for both range-dependent and range-independent environmental conditions.
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