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Higher-order finite element particle tracing in external electrostatic field

Citace:
MACH, F., KARBAN, P., DOLEŽEL, I. Higher-order finite element particle tracing in external electrostatic field. Poznan University of Technology Academic Journals : Electrical Engineering, 2012, roč. 2012, č. 69, s. 23-31. ISSN: 1897-0737
Druh: ČLÁNEK
Jazyk publikace: eng
Anglický název: Higher-order finite element particle tracing in external electrostatic field
Rok vydání: 2012
Autoři: Ing. František Mach Ph.D. , Doc. Ing. Pavel Karban Ph.D. , Prof. Ing. Ivo Doležel CSc. ,
Abstrakt EN: Simulation of movement of a large number of charged particles in external electrostatic field is of great importance for a correct design of separators whose aim is to select them according to the sign of their charge. The paper deals with modeling of their trajectories in a specific arrangement consisting of a profile vessel equipped with two electrodes. Electric field between the electrodes is mapped using a fully adaptive higher-order finite element method and the discretization mesh varies with respect to the actual position of the considered particles. The movement of the particles affected by electric field, gravity and aerodynamic resistance is mapped using an adaptive Runge-Kutta method with a time-varying time step. On the other hand, their charges are rather low, so that it is possible to neglect the Coulomb forces acting among them. The methodology is illustrated by a typical example whose results are discussed.
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