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DC Field | Value | Language |
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dc.contributor.author | Telis-Romero, Javier | - |
dc.contributor.author | Gratao, Aha Carolina A | - |
dc.contributor.author | Garcia-Cruz, Crispin H. | - |
dc.contributor.author | Telis, Vania R N | - |
dc.date.accessioned | 2014-05-27T11:19:52Z | - |
dc.date.accessioned | 2016-10-25T18:16:14Z | - |
dc.date.available | 2014-05-27T11:19:52Z | - |
dc.date.available | 2016-10-25T18:16:14Z | - |
dc.date.issued | 2000-01-01 | - |
dc.identifier.citation | Ciencia and Engenharia/ Science and Engineering Journal, v. 9, n. 1, p. 78-82, 2000. | - |
dc.identifier.issn | 0103-944X | - |
dc.identifier.uri | http://hdl.handle.net/11449/66080 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/66080 | - |
dc.description.abstract | Friction loss coefficients for laminar flow of xantan gum solutions (concentrations in the range of 0.1-0.5% by weight) through valves and fittings were experimentally determined. The rheological behavior, studied by means of a concentric cylinder rheometer, was pseudoplastic, being well described by the Ostwald-De Waele model with non-linear correlation coefficients (r) between 0.998 and 0.999. In the pressure drop measurements the following fittings were employed: completely open and half way open ball valve, completely open and half way open angle valve, tee used like coupling, tee used like a 90° elbow, short radius 90° elbow and coupling. The results showed that the friction loss coefficients increased with decreasing generalized Reynolds number. The friction loss coefficients could be well adjusted by a potential model, suggested by Kittredge & Rowley (1957) for Newtonian fluids, K f = A(Re g) -B, with correlation coefficients between 0.837 and 0.999. | en |
dc.format.extent | 78-82 | - |
dc.language.iso | por | - |
dc.source | Scopus | - |
dc.subject | Correlation methods | - |
dc.subject | Friction | - |
dc.subject | Non Newtonian liquids | - |
dc.subject | Pipe fittings | - |
dc.subject | Pressure drop | - |
dc.subject | Pressure measurement | - |
dc.subject | Reynolds number | - |
dc.subject | Rheology | - |
dc.subject | Rheometers | - |
dc.subject | Valves (mechanical) | - |
dc.subject | Concentric cylinder rheometers | - |
dc.subject | Friction loss coefficients | - |
dc.subject | Nonlinear correlation coefficients | - |
dc.subject | Open ball valves | - |
dc.subject | Xantan gum solutions | - |
dc.subject | Laminar flow | - |
dc.title | Coeficientes de perda de carga em valvulas e acessorios no escoamento laminar de fluidos nao-Newtonianos | pt |
dc.title.alternative | Friction loss coefficients across valves and fittings for laminar flow of non-Newtonian fluids | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | UNESP, Sao Jose do Rio Preto | - |
dc.description.affiliationUnesp | UNESP, Sao Jose do Rio Preto | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Ciencia and Engenharia/ Science and Engineering Journal | - |
dc.identifier.scopus | 2-s2.0-0033684574 | - |
dc.identifier.orcid | 0000-0002-2553-4629 | pt |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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