On the Transparent Boundary Conditions (TBC) for the Parabolic Wave Equation
Conference: ISTET 2009 - VXV International Symposium on Theoretical Engineering
06/22/2009 - 06/24/2009 at Lübeck, Germany
Proceedings: ISTET 2009
Pages: 1Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Šumichrast, Lubomír (Slovak University of Technology)
Ehrhardt, Matthias (Weierstrass Institute for Applied Analysis and Stochastics)
For the simulation of the propagation of electromagnetic waves is in certain situations the parabolic approximation of the scalar wave equation commonly used. It is important to have well-performing transparent boundary conditions applied on the boundaries of the finite computational window, to enable the superfluous portion of the propagating wave to radiate away from the e.g. wave guiding structure. Four different formulations (continuous, two kinds of semi-discrete and one fully-discrete) of the non-local transparent boundary conditions are described and their performance compared.