New special wave boundary elements for short wave problems
| Autor: | Peter Bettess, Emmanuel Perrey-Debain, Jon Trevelyan |
|---|---|
| Přispěvatelé: | Université de Technologie de Compiègne (UTC) |
| Rok vydání: | 2002 |
| Předmět: |
Helmholtz equation
Applied Mathematics Numerical analysis Mathematical analysis Degrees of freedom General Engineering Plane wave Boundary (topology) Geometry 02 engineering and technology 01 natural sciences Numerical integration 010101 applied mathematics [SPI]Engineering Sciences [physics] 020303 mechanical engineering & transports 0203 mechanical engineering Computational Theory and Mathematics Modeling and Simulation Cylinder 0101 mathematics Boundary element method ComputingMilieux_MISCELLANEOUS Software Mathematics |
| Zdroj: | Communications in Numerical Methods in Engineering Communications in Numerical Methods in Engineering, Wiley, 2002, 18 (4), pp.259-268. ⟨10.1002/cnm.492⟩ |
| ISSN: | 1069-8299 1099-0887 |
| DOI: | 10.1002/cnm.492 |
| Popis: | The theory of special boundary elements which incorporate wave shapes into the element shape functions is described. The new boundary elements are applied to the classical problem of plane waves scattered by a circular cylinder. The new boundary elements demonstrate reduced errors, for a given number of degrees of freedom, of three to five orders of magnitude. No difficulties were encountered in the implementation of the new elements. It is concluded that this is a powerful new method for scattering of short waves. Copyright © 2002 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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