| Autor(es): |
Na, Dong-Yeop
;
Omelchenko, Yuri A.
;
Borges, Ben-Hur V.
;
Teixeira, Fernando L.
;
IEEE
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 2017 XXXIIND GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM OF THE INTERNATIONAL UNION OF RADIO SCIENCE (URSI GASS); v. N/A, p. 4-pg., 2017-01-01. |
| Resumo | |
We discuss the discretization of Maxwell-Vlasov equations based on a discrete exterior calculus framework, which provides a natural factorization of the discrete field equations into topological (metric-free) and metric-dependent parts. This enables a gain in geometrical flexibility when dealing with general grids and also the ab initio, exact preservation of conservation laws through discrete analogues. In particular, we describe a particle-in-cell (PIC) implementation of time-dependent discrete Maxwell-Vlasov equations, whereby the electromagnetic field are discretized using Whitney forms and coupled to particle dynamics by means of a gather-scatter scheme that yields exact charge-conservation on general grids. Numerical examples of PIC simulations such as vacuum diode and backward-wave oscillator are used to illustrate the approach. (AU) | |
| Processo FAPESP: | 15/50268-5 - Novel metamaterials for rf/microwave and optical applications |
| Beneficiário: | Ben-Hur Viana Borges |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |