Radiation boundary conditions for finite element solutions of generalized wave equations
β Scribed by Matthias Johnsen; Keith D. Paulsen; Francisco E. Werner
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 945 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0271-2091
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π SIMILAR VOLUMES
## Abstract This paper presents a novel radiation boundary condition (RBC) with the spectral integral method (SIM) to truncate the computational domain in the finiteβelement method (FEM). Because of the spectral accuracy of the SIM, the sampling density on the radiation boundary requires less than
A modiΓΏed version of an exact Non-re ecting Boundary Condition (NRBC) ΓΏrst derived by Grote and Keller is implemented in a ΓΏnite element formulation for the scalar wave equation. The NRBC annihilate the ΓΏrst N wave harmonics on a spherical truncation boundary, and may be viewed as an extension of th
The vector Poisson equation is sometimes supplemented by conditions that include the specification of the boundary value of the divergence of the unknown. A rigorous analysis of such a vector Poisson problem and uncoupled solution methods have been presented for domains of C 1,1 and Lipschitz regula