The carreau-yasuda fluids: a skin friction equation for turbulent flow in pipes and kolmogorov dissipative scales

dc.contributor.editorAssociação Brasileira de Ciências Mecânicas
dc.creatorANDRADE, Luiz Claudio Fialho
dc.creatorPETRONÍLIO, Jamilson A.
dc.creatorMANESCHY, Carlos Edilson de Almeida
dc.creatorCRUZ, Daniel Onofre de Almeida
dc.date.accessioned2011-04-26T17:20:03Z
dc.date.available2011-04-26T17:20:03Z
dc.date.issued2007-06
dc.description.abstractIn this work the turbulent flow of the Non-Newtonian Carreau-Yasuda fluid will be studied. A skin friction equation for the turbulent flow of Carreau-Yasuda fluids will be derived assuming a logarithmic behavior of the turbulent mean velocity for the near wall flow out of the viscous sub layer. An alternative near wall characteristic length scale which takes into account the effects of the relaxation time will be introduced. The characteristic length will be obtained through the analysis of viscous region near the wall. The results compared with experimental data obtained with Tylose (methyl hydroxil cellulose) solutions showing good agreement. The relations between scales integral and dissipative obtained for length, time, velocity, kinetic energy, and vorticity will be derived for this type of fluid. When the power law index approach to unity the relations reduces to Newtonian case.pt_BR
dc.identifier.citationANDRADE, Luiz Claudio F. et al. The carreau-yasuda fluids: a skin friction equation for turbulent flow in pipes and kolmogorov dissipative scales. Journal of the Brazilian Society of Mechanical Scinces & Engineering, online, v. 29, n. 2, p. 162-167, jun. 2007. DOI: http://dx.doi.org/10.1590/S1678-58782007000200005. Disponível em: http://www.repositorio.ufpa.br/jspui/handle/2011/2145. Acesso em:.pt_BR
dc.identifier.doi10.1590/S1678-58782007000200005
dc.identifier.issn1678-5878
dc.identifier.urihttp://www.repositorio.ufpa.br/jspui/handle/2011/2145
dc.language.isoengpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectFluídos não-newtonianospt_BR
dc.subjectMecânica dos fluídospt_BR
dc.subjectTurbulência
dc.titleThe carreau-yasuda fluids: a skin friction equation for turbulent flow in pipes and kolmogorov dissipative scalespt_BR
dc.typeArtigo de Periódicopt_BR

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