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https://hdl.handle.net/2445/18771
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DC Field | Value | Language |
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dc.contributor.author | Soriano i Fradera, Jordi | cat |
dc.contributor.author | Ortín, Jordi, 1959- | cat |
dc.contributor.author | Hernández Machado, Aurora | cat |
dc.date.accessioned | 2011-07-07T12:52:18Z | - |
dc.date.available | 2011-07-07T12:52:18Z | - |
dc.date.issued | 2002 | - |
dc.identifier.issn | 1063-651X | - |
dc.identifier.uri | https://hdl.handle.net/2445/18771 | - |
dc.description.abstract | We have studied the kinetic roughening of an oil-air interface in a forced imbibition experiment in a horizontal Hele-Shaw cell with quenched disorder. Different disorder configurations, characterized by their persistence length in the direction of growth, have been explored by varying the average interface velocity v and the gap spacing b. Through the analysis of the rms width as a function of time, we have measured a growth exponent β ≃ 0.5 that is almost independent of the experimental parameters. The analysis of the roughness exponent α through the power spectrum has shown different behaviors at short ( α 1 ) and long ( α 2 ) length scales, separated by a crossover wave number q c . The values of the measured roughness exponents depend on experimental parameters, but at large velocities we obtain α 1 ≃ 1.3 independently of the disorder configuration. The dependence of the crossover wave number with the experimental parameters has also been investigated, measuring q c ∼ v 0.47 for the shortest persistence length, in agreement with theoretical predictions. | - |
dc.format.extent | 18 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.66.031603 | cat |
dc.relation.ispartof | Physical Review E, 2002, vol. E66, p. 031603-1-031603-18 | - |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevE.66.031603 | - |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevE.66.031603 | - |
dc.rights | (c) The American Physical Society, 2002 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Dinàmica de fluids | cat |
dc.subject.classification | Interfícies (Ciències físiques) | cat |
dc.subject.classification | Pel·lícules fines | cat |
dc.subject.classification | Nanoestructures | cat |
dc.subject.other | Fluid dynamics | eng |
dc.subject.other | Interfaces (Physical sciences) | eng |
dc.subject.other | Thin films | eng |
dc.subject.other | Nanostructures | eng |
dc.title | Experiments of interfacial roughening of Hele-Shaw flows with weak quenched disorder | eng |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 509774 | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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509774.pdf | 1.18 MB | Adobe PDF | View/Open |
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