Fluidodinâmica computacional aplicada ao estudo de forças e movimentos induzidos por vórtices em diferentes formatos de seções transversais das colunas de plataformas semissubmersíveis

Aline Peres Leal, André Luís Condino Fujarra

Resumo


Neste trabalho, realizou-se a análise fluidodinâmica computacional de seções nos formatos circular, quadrada e diamante de uma coluna de plataformas offshore, nas condições fixa e com dois graus de liberdade (2GDL). As simulações foram conduzidas em escoamento bidimensional no regime laminar (Re=100). As simulações com grau de liberdade foram feitas com razão de massa 10, sem consideração de amortecimento. Dos resultados obtidos, o menor valor de arrasto médio foi encontrado para a coluna circular fixa e o menor valor quadrático médio de sustentação ocorreu para a coluna de seção quadrada com 2GDL.


Palavras-chave


análise numérica; plataformas offshore; seções; VIM; grau de liberdade;

Texto completo:

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Revista Brasileira de Iniciação Científica, Itapetininga, SP, Brasil, ISSN: 2359-232X

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