
doi: 10.1002/jnm.515
AbstractThe boundary element method is a discretized version of the boundary integral equation method. The variational formulation is presented for the boundary element approach to Helmholtz problems. The numerical calculation of the eigenvalues in association with hollow waveguides demonstrates that the variational approach provides the upper and lower bounds of the eigenvalues.The drawback of the discretized system equation must be solved by a trial and error approach, which is shown to be removed by the introduction of the dual reciprocity method. Copyright © 2003 John Wiley & Sons, Ltd.
boundary elements, Helmholtz problems, Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation, boundary integral equation method, eigenvalues, variational approach, Boundary element methods for boundary value problems involving PDEs, waveguides, Antennas, waveguides in optics and electromagnetic theory, Boundary element methods applied to problems in optics and electromagnetic theory, dual reciprocity method
boundary elements, Helmholtz problems, Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation, boundary integral equation method, eigenvalues, variational approach, Boundary element methods for boundary value problems involving PDEs, waveguides, Antennas, waveguides in optics and electromagnetic theory, Boundary element methods applied to problems in optics and electromagnetic theory, dual reciprocity method
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