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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleDrag reduction in aqueous poly(ethylene oxide) solutions based on drop impact imagespt_BR
dc.contributor.authorSabadini, Ept_BR
dc.contributor.authorAlkschbirs, MIpt_BR
unicamp.author.emailsabadini@iqm.unicamp.brpt_BR
unicamp.authorUniv Estadual Campinas, Inst Quim, BR-13084862 Campinas, Brazilpt_BR
dc.subject.wosPoly(acrylic Acid)pt_BR
dc.subject.wosPolymer-solutionspt_BR
dc.subject.wosShallow Liquidspt_BR
dc.subject.wosSurfacept_BR
dc.subject.wosTurbulencept_BR
dc.subject.wosBreakuppt_BR
dc.subject.wosFlowpt_BR
dc.description.abstractThe presence of very small amounts (ppm) of high molecular weight polymers in a solution produces high levels of drag reduction in a turbulent flow. This phenomenon, often termed as the Toms Effect, is highly dependent not only on molecular weight (MW) but also on the flexibility of the macromolecular chain. This paper describes the effects of poly(ethylene oxide) MW, concentration, and chain compaction on the impact structures produced during collision between a droplet against a shallow liquid surface (splash), both liquids containing the polymer. The impact energy stored in the splash structures (composed of crown, cavity, and Rayleigh jet) was estimated using a simple model and some morphological parameters obtained from instantaneous images of the splash. It was observed that the height of the Rayleigh jet, a liquid column produced from the collapse of the crown and the cavity, is highly sensitive to the elongational viscosity of the solution.pt
dc.relation.ispartofJournal Of Physical Chemistry Bpt_BR
dc.relation.ispartofabbreviationJ. Phys. Chem. Bpt_BR
dc.publisher.cityWashingtonpt_BR
dc.publisher.countryEUApt_BR
dc.publisherAmer Chemical Socpt_BR
dc.date.issued2004pt_BR
dc.date.monthofcirculation47119pt_BR
dc.identifier.citationJournal Of Physical Chemistry B. Amer Chemical Soc, v. 108, n. 4, n. 1183, n. 1188, 2004.pt_BR
dc.language.isoenpt_BR
dc.description.volume108pt_BR
dc.description.issuenumber4pt_BR
dc.description.firstpage1183pt_BR
dc.description.lastpage1188pt_BR
dc.rightsfechadopt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn1520-6106pt_BR
dc.identifier.wosidWOS:000188535700006pt_BR
dc.identifier.doi10.1021/jp035158vpt_BR
dc.date.available2014-11-14T14:03:31Z
dc.date.available2015-11-26T16:06:49Z-
dc.date.accessioned2014-11-14T14:03:31Z
dc.date.accessioned2015-11-26T16:06:49Z-
dc.description.provenanceMade available in DSpace on 2014-11-14T14:03:31Z (GMT). No. of bitstreams: 1 WOS000188535700006.pdf: 118738 bytes, checksum: 7bb1efb6520a80eca0392cc2d6571f93 (MD5) Previous issue date: 2004en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:06:49Z (GMT). No. of bitstreams: 2 WOS000188535700006.pdf: 118738 bytes, checksum: 7bb1efb6520a80eca0392cc2d6571f93 (MD5) WOS000188535700006.pdf.txt: 29661 bytes, checksum: 2899ff85a93df05190f422030a65333e (MD5) Previous issue date: 2004en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/63485pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/63485
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/63485-
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