dc.creatorMaia, M.C.A.
dc.creatorGasparetto, C.A.
dc.date2003-06-01
dc.date2014-07-17T17:37:48Z
dc.date2015-11-26T13:20:43Z
dc.date2014-07-17T17:37:48Z
dc.date2015-11-26T13:20:43Z
dc.date.accessioned2018-03-28T21:04:10Z
dc.date.available2018-03-28T21:04:10Z
dc.identifierBrazilian Journal of Chemical Engineering. Brazilian Society of Chemical Engineering, v. 20, n. 2, p. 201-211, 2003.
dc.identifier0104-6632
dc.identifierS0104-66322003000200014
dc.identifier10.1590/S0104-66322003000200014
dc.identifierhttp://dx.doi.org/10.1590/S0104-66322003000200014
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000200014
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/26105
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/26105
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1239745
dc.descriptionContinuity and momentum equations applied to the entrance region of an axial, incompressible, isothermal, laminar and steady flow of a power-law fluid in a concentric annulus, were solved by a finite difference implicit method. The Newtonian case was solved used for validation of the method and then compared to reported results. For the non-Newtonian case a pseudoplastic power-law model was assumed and the equations were transformed to obtain a pseudo-Newtonian system which enabled its solution using the same technique as that used for the Newtonian case. Comparison of the results for entrance length and pressure drop with those available in the literature showed a qualitative similarity, but significant quantitative differences. This can be attributed to the differences in entrance geometries and the definition of asymptotic entrance length.
dc.description201
dc.description211
dc.languageen
dc.publisherBrazilian Society of Chemical Engineering
dc.relationBrazilian Journal of Chemical Engineering
dc.rightsaberto
dc.sourceSciELO
dc.subjectannular geometries
dc.subjectvelocity
dc.subjectpressure
dc.subjectfinite differences
dc.subjectpseudoplastics
dc.titleA numerical solution for the entrance region of non-newtonian flow in annuli
dc.typeArtículos de revistas


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