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Hard-coupled nonlinear model of induction heating of nonmagnetic cylindrical billets in rotation

Citace: [] KARBAN, P., MACH, F., DOLEŽEL, I. Hard-coupled nonlinear model of induction heating of nonmagnetic cylindrical billets in rotation. COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING, 2012, roč. 31, č. 5, s. 1368-1378. ISSN: 0332-1649
Druh: ČLÁNEK
Jazyk publikace: eng
Anglický název: Hard-coupled nonlinear model of induction heating of nonmagnetic cylindrical billets in rotation
Rok vydání: 2012
Autoři: Doc. Ing. Pavel Karban Ph.D. , Ing. František Mach , Prof. Ing. Ivo Doležel CSc.
Abstrakt EN: The purpose of this paper is to present a model of induction heating of aluminium billets rotating in a static magnetic field generated by permanent magnets. The model is solved by the authors own software and the results are verified experimentally. The mathematical model of the problem given by two partial differential equations describing the distribution of the magnetic and temperature fields in the system is solved by a fully adaptive higher-order finite element method in the hard-coupled formulation. All material nonlinearities are taken into account. The method of solution realized by the code is reliable and works faster in comparison with the existing low-order finite element codes. The method works for 2D arrangements with an extremely high accuracy. Its limitations consist mainly in problems of determining the coefficients of convection and radiation for temperature field in the system (respecting both temperature and revolutions). The methodology can successfully be used for design of devices for induction heating of cylindrical nonmagnetic bodies by rotation and anticipation of their operation parameters. The paper presents a fully adaptive higher-order finite element and its utilization for a hard-coupled numerical solution of the problem of induction heating.
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