An optimal 25-point finite difference scheme for the Helmholtz equation with PML (Q654737)
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scientific article; zbMATH DE number 5991193
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | An optimal 25-point finite difference scheme for the Helmholtz equation with PML |
scientific article; zbMATH DE number 5991193 |
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An optimal 25-point finite difference scheme for the Helmholtz equation with PML (English)
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21 December 2011
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An optimal 25-point finite difference scheme for solving the Helmholtz equation with perfectly matched layer (PML) in two dimensional domain is presented. Based on minimizing the numerical dispersion, the authors propose a refined choice strategy for choosing optimal parameters of the 25-point finite difference scheme. Numerical experiments are given to illustrate the improvement of the accuracy and the reduction of the numerical dispersion.
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Helmholtz equation
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25-point finite difference scheme
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numerical dispersion
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perfectly matched layer
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numerical experiments
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