Open boundary conditions are presented to solve partial differential equations by weans of the finite element method. Characteristic impedance boundary conditions (CIBC) are imposed on an artificial boundary to match the external domain with the internal one, avoiding the reflections of the electromagnetic field. An alternative method based on the application of the Green's theorem is presented for low-frequency fields since the electric and magnetic fields can be considered uncoupled.
CHARACTERISTIC IMPEDANCE BOUNDARY-CONDITIONS FOR THE SOLUTION OF OPEN BOUNDARY-PROBLEMS
FELIZIANI, MAURO
1993-01-01
Abstract
Open boundary conditions are presented to solve partial differential equations by weans of the finite element method. Characteristic impedance boundary conditions (CIBC) are imposed on an artificial boundary to match the external domain with the internal one, avoiding the reflections of the electromagnetic field. An alternative method based on the application of the Green's theorem is presented for low-frequency fields since the electric and magnetic fields can be considered uncoupled.File in questo prodotto:
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