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Descarga de filamentos modelada numa configuração 1,5D

Descarga de filamentos modelada numa configuração 1,5D

Aicha Flitti

90,69 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Sociedad y cultura: general
ISBN:
9786208962753
90,69 €
IVA incluido
Disponible

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Este trabalho é dedicado à modelação numérica em 1.5D do transporte de partículas carregadas em descargas fora de equilíbrio do tipo filamento. A configuração escolhida é do tipo ponta plana no meio gasoso azoto. Optámos por um modelo hidrodinâmico (modelo de deriva-difusão) derivado do acoplamento auto-consistente dos dois primeiros momentos da equação de Boltzmann à equação de Poisson. As equações de conservação para partículas carregadas sujeitas a fortes gradientes de densidade e variações do campo elétrico foram resolvidas utilizando o esquema numérico de Scharfetter e Gummel de ordem zero estabelecido por Kulikovsky. A equação de Poisson é resolvida em 2D utilizando o método do disco, a fim de ter em conta a expansão radial da descarga (presença de cargas espaciais muito grandes).

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