2011
DOI: 10.1590/s1678-86212011000100010
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Aplicação de CFD para o cálculo de coeficientes de pressão externos nas aberturas de um edifício

Abstract: Resumooeficientes de pressão (C p ) são um importante parâmetro no estudo da ventilação pela ação dos ventos em edifícios. Este artigo tem por objetivo avaliar a viabilidade no uso de dinâmica dos fluidos computacional (CFD -Computational Fluid Dynamics) para a obtenção de C p , assim como avaliar a importância de alguns dos aspectos da configuração das simulações nos resultados obtidos. Os seguintes aspectos foram analisados: densidade da malha adotada, sensibilidade ao perfil de vento, e sensibilidade à rugo… Show more

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Cited by 11 publications
(7 citation statements)
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References 14 publications
(16 reference statements)
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“…Then, we calculated mass, heat, and momentum conservation. The smaller the mesh dimension, the more accurate the results and the greater the time and the processing power necessary for simulation (CÓSTOLA & ALUCCI, 2011). Different dimensions were used for the mesh building, of which the smaller one was equal to the thickness of air inlet and outlets (0.001 m), and the larger measuring 0.230 m. The chosen type of mesh was hexahedral because tetrahedral meshes require greater computational effort and a larger quantity of elements to the same number of nodes (JOAQUIM JUNIOR et al, 2007).…”
Section: Computational Fluid Dynamics (Cfd) Application For Ventilatimentioning
confidence: 99%
“…Then, we calculated mass, heat, and momentum conservation. The smaller the mesh dimension, the more accurate the results and the greater the time and the processing power necessary for simulation (CÓSTOLA & ALUCCI, 2011). Different dimensions were used for the mesh building, of which the smaller one was equal to the thickness of air inlet and outlets (0.001 m), and the larger measuring 0.230 m. The chosen type of mesh was hexahedral because tetrahedral meshes require greater computational effort and a larger quantity of elements to the same number of nodes (JOAQUIM JUNIOR et al, 2007).…”
Section: Computational Fluid Dynamics (Cfd) Application For Ventilatimentioning
confidence: 99%
“…However, they add little or no information about the advantages and disadvantages of each option available [15].…”
Section: Testing Different Turbulence Modelsmentioning
confidence: 99%
“…However, obtaining Cp data according to this method is not always possible, due to high cost of these experiments, equipment and expertise involved [15].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…(BURNETT et al, 2005;CHENG et al, 2008;CÓSTOLA;ALUCCI, 2011;HIRANO, 2006;LAM et al, 2008;SHEN et al, 2012) CHEN, 2002;KATO et al, 1992;NIKAS et al, 2010;NORTON et al, 2010;RAMPONI;BLOCKEN, 2012;SEIFERT et al, 2006;STAVRAKAKIS et al, 2008;STRAW et al, 2000).…”
Section: Túnel De Ventounclassified