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Interações onda-partícula carregada em plasmas espaciais

Interações onda-partícula carregada em plasmas espaciais

Aicha Flitti

119,81 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Teoría general del derecho
ISBN:
9786208962692
119,81 €
IVA incluido
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Este livro é dedicado ao estudo das interações das partículas carregadas nos plasmas espaciais. Estas desempenham um papel crucial em muitos fenómenos observados no espaço, tais como auroras, ventos solares, raios cósmicos e muitos outros. Para a simulação, utilizámos o método PIC (Particle In Cell), considerado o primeiro método historicamente desenvolvido para a simulação das equações de Vlasov Maxwell ou Vlasov Poisson (acoplamento de um método de partículas para Vlasov e um método de malha para Poisson ou Maxwell). O princípio do método consiste em discretizar a função de distribuição por um conjunto de macro-partículas que representam, no instante inicial, uma concretização da lei de probabilidade associada à função de distribuição inicial. Desta forma, foi possível compreender os processos não lineares e os processos microfísicos de base nos plasmas espaciais, tais como as flutuações térmicas electrostáticas, os processos devidos à instabilidade eletrostática e a instabilidade eletrónica de dois fluxos (ESW ou ondas estacionárias de electrões).

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