Análise da execução de um algoritmo numérico cbs para simulação de escoamento utilizando elementos finitos
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Data
2009-10-12
Autores
de Carvalho Oliveira, Marcos Paulo [UNESP]
Scalon, Vicente Luiz [UNESP]
Padilha, Alcides [UNESP]
Título da Revista
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Resumo
This work intends to analyze the application and execution time of a numerical algorithm that simulates incompressible and isothermal flows. It was used the explicit scheme of the Characteristic Based Split (CBS) algorithm and the Artificial Compressibility (AC) scheme for coupling pressure-velocity equations. The discretization was done with the finite element method using a bilinear elements grid. The free software GNU-Octave was used for implementation and execution of routines. The results were analyzed using the classic lid-driven cavity problem. This work shows results for tests with several Reynolds' number. The results for these tests show a good agreement when compared with previous ones obtained from bibliography. The code runtime's analysis shows yet that the matrix's assembly is the part of greater consumption time in the implementation.
Descrição
Palavras-chave
Artificial compressibility, CBS, Finite element method, GNU-Octave, Lid-driven cavity
Como citar
Ingeniare, v. 17, n. 2, p. 166-174, 2009.