Abstract
Wave propagation problems involving both high conductivity materials and large non-conducting domains are solved in the frequency domain by the method of finite elements (FEM) using edge basis functions and applying the A,V-formulation. The singular matrix of the resulting algebraic equation system is regularized by tree gauging to facilitate its direct solution. It is shown that choosing a random tree can result in erroneous solutions even if a highly sophisticated sparse parallel direct equation system solver is used. This problem is overcome by generating the tree by a special algorithm taking account of the presence of high conductivity materials. Two numerical examples are investigated: an academic 1D wave propagation problem and a real-word 3D antenna.
Originalsprache | englisch |
---|---|
Seitenumfang | 2 |
Publikationsstatus | Veröffentlicht - 2019 |
Veranstaltung | 22nd International Conference on the Computation of Electromagnetic Fields: COMPUMAG 2019 - Campus Pierre and Marie Curie of Sorbonne University, Paris, Frankreich Dauer: 15 Juli 2019 → 19 Juli 2019 Konferenznummer: 22 https://www.compumag2019.com/ http://www.compumag.org/ |
Konferenz
Konferenz | 22nd International Conference on the Computation of Electromagnetic Fields |
---|---|
Kurztitel | Compumag 2019 |
Land/Gebiet | Frankreich |
Ort | Paris |
Zeitraum | 15/07/19 → 19/07/19 |
Internetadresse |