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http://hdl.handle.net/2445/12831
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DC Field | Value | Language |
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dc.contributor.author | Alvarez Lacalle, Enrique | cat |
dc.contributor.author | Ortín, Jordi, 1959- | cat |
dc.contributor.author | Casademunt i Viader, Jaume | cat |
dc.date.accessioned | 2010-06-11T08:43:03Z | - |
dc.date.available | 2010-06-11T08:43:03Z | - |
dc.date.issued | 2004 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/12831 | - |
dc.description.abstract | We show, both theoretically and experimentally, that the interface between two viscous fluids in a Hele-Shaw cell can be nonlinearly unstable before the Saffman-Taylor linear instability point is reached. We identify the family of exact elastica solutions [Nye et al., Eur. J. Phys. 5, 73 (1984)] as the unstable branch of the corresponding subcritical bifurcation which ends up at a topological singularity defined by interface pinchoff. We devise an experimental procedure to prepare arbitrary initial conditions in a Hele-Shaw cell. This is used to test the proposed bifurcation scenario and quantitatively asses its practical relevance. | eng |
dc.format.extent | 4 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | eng |
dc.publisher | American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.92.054501 | cat |
dc.relation.ispartof | Physical Review Letters, 2004, vol. 92, núm. 5, p. 054501-1-054501-4 | cat |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevLett.92.054501 | - |
dc.rights | (c) American Physical Society, 2004 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Dinàmica de fluids | cat |
dc.subject.classification | Pertorbació (Dinàmica quàntica) | cat |
dc.subject.other | Fluid dynamics | eng |
dc.subject.other | Perturbation (Quantum dynamics) | eng |
dc.title | Nonlinear Saffman-Taylor instability | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 514509 | - |
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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514509.pdf | 230.72 kB | Adobe PDF | View/Open |
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