Drag Reduction Studied By Splashing Visualization

dc.creatorSabadini E.
dc.creatorAlkschbirs M.I.
dc.date2001
dc.date2015-06-26T14:43:45Z
dc.date2015-11-26T14:17:07Z
dc.date2015-06-26T14:43:45Z
dc.date2015-11-26T14:17:07Z
dc.date.accessioned2018-03-28T21:18:09Z
dc.date.available2018-03-28T21:18:09Z
dc.identifier
dc.identifierJournal Of Visualization. , v. 4, n. 3, p. 217 - 222, 2001.
dc.identifier13438875
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0035633401&partnerID=40&md5=7e6a3097eb8d25e78289453edf6e8b9e
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/95160
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/95160
dc.identifier2-s2.0-0035633401
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1243247
dc.descriptionThe splash is a phenomenon which happens on droplet impact against a shallow liquid surface (target), forming a structure called crown. After the collapse of the crown, a liquid column (Rayleigh jet) arises on the surface. Splashing has been studied from a great variety of viewpoints, in different fields such as: agronomy, biology, engineering, astronomy, photography and marketing. The visualization of the splash was used, in our case, to study the drag reduction effect that happens when very low concentrations of a high molecular weight polymer is present in the fluid under investigation. We have developed a controlled drop-releasing device, fitted with a high-speed CCD camera [with shutter speed of 1/10000 s], and an image acquisition and processing system. Using this assembly, it was possible to observe large changes in the splash structures of water, especially in the extension of the Rayleigh jet. This result was associated with the drag reduction effect produced by the polymer. Result obtained with the dyed drop technique has shown that the presence of the polymer affects the mixture of the liquids from the droplet and target.
dc.description4
dc.description3
dc.description217
dc.description222
dc.descriptionAlkschbirs, M.I., Sabadini, E., (2001) Study of Drag Reduction Based on the Splash Visualization, Experiments of Fluid, , submitted
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dc.descriptionHemmings, J.A.G., White, A., (1976) Drag Reduction by Additives - Review and Bibliography, , BHRA Fluid Engineering
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dc.descriptionHoyt, J.W., Scrivener, O., Sellin, R.H.J., The Effect of Drag-reducing Additives on Fluid Flows and their Industrial Applications - Part 1: Basic Aspects (1982) J. Hydraul. Res., 20, pp. 29-68
dc.descriptionHoyt, J.W., Use of High-polymer Solutions as an Aid on Flow Visualization (1989) Flow Visualization - Fluid Engineering Division, , ASME
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dc.languageen
dc.publisher
dc.relationJournal of Visualization
dc.rightsfechado
dc.sourceScopus
dc.titleDrag Reduction Studied By Splashing Visualization
dc.typeArtículos de revistas


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