Power-law behavior of power spectra in low Prandtl number Rayleigh-Benard convection

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dc.contributor.authorPaul, Mark R.en
dc.contributor.authorCross, M. C.en
dc.contributor.authorFischer, P. F.en
dc.contributor.authorGreenside, H. S.en
dc.date.accessioned2024-10-07T18:52:33Zen
dc.date.available2024-10-07T18:52:33Zen
dc.date.issued2001-09-25en
dc.description.abstractThe origin of the power-law decay measured in the power spectra of low Prandtl number Rayleigh-Bénard convection near the onset of chaos is addressed using long time numerical simulations of the three-dimensional Boussinesq equations in cylindrical domains. The power law is found to arise from quasidiscontinuous changes in the slope of the time series of the heat transport associated with the nucleation of dislocation pairs and roll pinch-off events. For larger frequencies, the power spectra decay exponentially as expected for time continuous deterministic dynamics.en
dc.description.versionPublished versionen
dc.format.extent4 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN 154501 (Article number)en
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.87.154501en
dc.identifier.eissn1079-7114en
dc.identifier.issn0031-9007en
dc.identifier.issue15en
dc.identifier.orcidPaul, Mark [0000-0002-0701-1955]en
dc.identifier.pmid11580703en
dc.identifier.urihttps://hdl.handle.net/10919/121288en
dc.identifier.volume87en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000171479600018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.relation.urihttp://dx.doi.org/10.1103/physrevlett.87.154501en
dc.rightsPublic Domain (U.S.)en
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.titlePower-law behavior of power spectra in low Prandtl number Rayleigh-Benard convectionen
dc.title.serialPhysical Review Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-groupVirginia Techen
pubs.organisational-groupVirginia Tech/Engineeringen
pubs.organisational-groupVirginia Tech/Engineering/Mechanical Engineeringen
pubs.organisational-groupVirginia Tech/All T&R Facultyen
pubs.organisational-groupVirginia Tech/Engineering/COE T&R Facultyen

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