@Article{AAMM-4-6, author = {S., Robert, Callihan and Wood, W., Aihua}, title = {A Modified Helmholtz Equation with Impedance Boundary Conditions}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2012}, volume = {4}, number = {6}, pages = {703--718}, abstract = {
Here considered is the problem of transient electromagnetic scattering from overfilled cavities embedded in an impedance ground plane. An artificial boundary condition is introduced on a semicircle enclosing the cavity that couples the fields from the infinite exterior domain to those fields inside. A Green's function solution is obtained for the exterior domain, while the interior problem is solved using finite element method. Well-posedness of the associated variational formulation is achieved and convergence and stability of the numerical scheme are confirmed. Numerical experiments show the accuracy and robustness of the method.
}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.12-12S02}, url = {https://global-sci.com/article/73567/a-modified-helmholtz-equation-with-impedance-boundary-conditions} }