Comparison of time-stepping methods for transient magnetic field computations in COMSOL Multiphysics

• Autorzy: Sowa M. , Typańska D.
• Konferencja: Computer Applications in Electrical Engineering 2014 (28-29.04.2014; Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

The computations of a transient magnetic field problem are presented. The problem has been constructed and solved in COMSOL Multiphysics which is one of the most popular and versatile commercial programs that allow to deal with solving electromagnetic field problems by means of the finite element method. A simple 2D problem of a coaxial cable has been chosen so that an analytical solution can be used in order to easily compute an error. The main topic of the paper concerns the comparison of the time-stepping methods that are available in COMSOL Multiphysics i.e. the BDF and generalized alpha methods. It is also possible to select various options for these methods, which have an influence on the solution accuracy. These have been also considered in the analysis.

Słowa kluczowe

EN

time-stepping; COMSOL; transient magnetic field

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2014
• Tom: No. 77
• Strony: 141--147
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Sowa M.

• Silesian University of Technology

autor

Typańska D.

• Poznań University of Technology

Bibliografia

• [1] Sowa M., Influence of BDF order on FEM computation, Computational problems of electrical engineering and advanced methods of the theory of electrical engineering. CPEE-AMTEE 2013 joint conference. Roztoky u Krivoklatu, Czech Republic, 4-6.09.2013.
• [2] Sowa M., Analysis of numerical efficiency of TD-FEM computation with BDF, Przegląd Elektrotechniczny, (2014).
• [3] Hairer E., Nørsett S.P., Wanner G., Solving Ordinary Differential Equations I: Nonstiff Problems, Springer Series in Computational Mathematics, Vol. 8, (1993).
• [4] http://www.comsol.com
• [5] Chung J., Hubert G.M., A Time Integration Algorithm for Structural Dynamics with Improved Numerical Dissipation: The Generalized-a Method, ASME Journal of Applied Mechanics, 60. 371-375, (1993).
• [6] http://www.comsol.com/products/specifications/
• [7] Piątek Z., Modelowanie linii, kabli i torów wielkoprądowych, Wydawnictwo Politechniki Częstochowskiej, (2007).
• [8] Vaniček P., Further development and properties of the spectral analysis by least-squares, Astrophysics and Space Science, 12, Issue 1, 10-33, (1971).