Determination of Far-Field Pattern of Rigid Scatterers Using Independent Finite Element Method and Eigenfunction Expansion, Part 1: Axisymmetric Scattering
| Autor: | C.P. Vendhan, C. Prabavathi |
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| Rok vydání: | 1996 |
| Předmět: |
Finite element method
Boundary (topology) Geometry Boundary value problems symbols.namesake Eigenfunction expansion Acoustic analysis Boundary element method Boundary value problem Mathematics Extended finite element method Finite truncation boundary Eigenvalues and eigenfunctions Boundary conditions Dirichlet boundary condition Neumann boundary condition Mathematical analysis General Engineering Mixed finite element method Eigenfunction Radiation boundary dampers Boundary knot method Boundary integral method Expansion coefficients Acoustic waves Rigid scatterers symbols |
| Zdroj: | Journal of Vibration and Acoustics. 118:575-582 |
| ISSN: | 1528-8927 1048-9002 |
| DOI: | 10.1115/1.2888337 |
| Popis: | The near-field steady state scattered potential around a rigid scatterer subjected to plane incident wave is computed using the finite element method with radiation boundary dampers on a finite truncation boundary. Then the solution in the outer domain is sought in the form of an eigenfunction expansion and the expansion coefficients are obtained using the finite element solution on the truncation boundary as Dirichlet boundary condition. The scattered far-field pattern is derived from this solution for prolate spheroid and hemispherically capped cylinder problems. |
| Databáze: | OpenAIRE |
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