Problema Creep-Térmico na Dinâmica de Gases Rarefeitos Baseado no Modelo BGK
DOI:
https://doi.org/10.5540/tema.2012.013.01.0063Abstract
Neste trabalho, apresenta-se resultados numéricos para perfil de velocidade, perfil de fluxo de calor, taxa de fluxo de partículas e taxa de fluxo de calor, relativas ao movimento de um gás rarefeito através de um canal plano sujeito aum gradiente de temperatura. Considera-se, aqui, o canal definido por duas placas paralelas com diferentes constituições químicas, isto é, com coeficientes de acomodação diferentes. Para solucionar este problema, denominado de Creep-Térmico,
inicialmente a equação de Boltzmann é aproximada pelas equações cinéticas que, neste caso, é baseada no modelo BGK. O processo de interação entre o gás e a superfície é descrito pelo modelo de Maxwell e pela condição generalizada de
Cercignani-Lampis. A solução do problema é encontrada através de uma versão analítica do método de ordenadas discretas (ADO).
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