MÉTODO DOS VOLUMES FINITOS: UMA ABORDAGEM PRÁTICA E APLICAÇÃO EM PROBLEMAS DE DIFUSÃO TÉRMICA COM MATLAB®

Autores

  • Elierton Evangelista Neves
  • Yuri Shalom de Freitas Bezerra

Palavras-chave:

Método dos Volumes Finitos, Transmissão de Calor, Matlab®

Resumo

O objetivo deste trabalho é descrever de forma prática com uma abordagem linear os aspectos essenciais do método dos volumes finitos (MVF). Na introdução foi dada uma visão geral do MVF, ressaltando aspectos referentes à identificação do domínio de interesse e dos tipos de malhas geradas na discretização, e aplicação do método MVF no problema de difusão de calor unidimensional. Na segunda parte deste trabalho buscou-se a aplicação no problema de difusão de calor bidimensional em uma placa plana de aço carbono ASTM A-36, submetida a temperaturas prescritas em distintas fronteiras. Na terceira parte é feita a apresentação dos resultados da distribuição das temperaturas na placa metálica nos tempos de 0, 20, 100 e 300 segundos de exposição às condições de contorno impostas. É importante ressaltar que os resultados obtidos neste trabalho devem ser visto como uma primeira aproximação da acuracidade do MVF e servem como referência aplicações futuras do mesmo. O código computacional elaborado em Matlab®, no Apêndice A, implementa o método dos volumes finitos (MVF) e solução do sistema de equações pelo algoritmo de Thomas também conhecido como TDMA.

Referências

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Neves, E. E., & Bezerra, Y. S. de F. (2013). MÉTODO DOS VOLUMES FINITOS: UMA ABORDAGEM PRÁTICA E APLICAÇÃO EM PROBLEMAS DE DIFUSÃO TÉRMICA COM MATLAB®. Carpe Diem: Revista Cultural E Científica Do UNIFACEX, 11(1), 28–45. Recuperado de https://periodicos.unifacex.com.br/Revista/article/view/363