A meshless particle method based on an unconditionally stable time domain numerical scheme, oriented to electromagnetic transient simulations, is presented. The proposed scheme improves the smoothed particle electromagnetics method, already developed by the authors. The time stepping is approached by using the alternating directions implicit finite difference scheme, in a leapfrog way. The proposed formulation is used in order to efficiently overcome the stability relation constraint of explicit schemes. In fact, due to this constraint, large time steps cannot be used with small space steps and vice-versa. The same stability relation holds when the meshless formulation is applied together with an explicit finite difference scheme accounted for the time stepping. The computational tool is assessed and first simulation results are compared and discussed in order to validate the proposed approach.

Ala, G., Francomano, E. (2013). A marching-on in time meshless kernel based solver for full-wave electromagnetic simulation. NUMERICAL ALGORITHMS, 62(4), 541-558 [10.1007/s11075-012-9635-1].

A marching-on in time meshless kernel based solver for full-wave electromagnetic simulation

ALA, Guido;FRANCOMANO, Elisa
2013-01-01

Abstract

A meshless particle method based on an unconditionally stable time domain numerical scheme, oriented to electromagnetic transient simulations, is presented. The proposed scheme improves the smoothed particle electromagnetics method, already developed by the authors. The time stepping is approached by using the alternating directions implicit finite difference scheme, in a leapfrog way. The proposed formulation is used in order to efficiently overcome the stability relation constraint of explicit schemes. In fact, due to this constraint, large time steps cannot be used with small space steps and vice-versa. The same stability relation holds when the meshless formulation is applied together with an explicit finite difference scheme accounted for the time stepping. The computational tool is assessed and first simulation results are compared and discussed in order to validate the proposed approach.
2013
Settore ING-IND/31 - Elettrotecnica
Settore MAT/08 - Analisi Numerica
Ala, G., Francomano, E. (2013). A marching-on in time meshless kernel based solver for full-wave electromagnetic simulation. NUMERICAL ALGORITHMS, 62(4), 541-558 [10.1007/s11075-012-9635-1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/72484
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