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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Apolinário, Gabriel Brito | - |
dc.contributor.author | Moriconi, Luca | - |
dc.contributor.author | Pereira, Rodrigo Miranda | - |
dc.date.accessioned | 2019-05-27T14:55:06Z | - |
dc.date.available | 2023-12-21T03:05:54Z | - |
dc.date.issued | 2019-03-04 | - |
dc.identifier.issn | 2470-0045 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/11422/8202 | - |
dc.description.abstract | We study the onset of intermittency in stochastic Burgers hydrodynamics, as characterized by the statistical behavior of negative velocity gradient fluctuations. The analysis is based on the response functional formalism, where specific velocity configurations—the viscous instantons—are assumed to play a dominant role in modeling the left tails of velocity gradient probability distribution functions. We find, as expected on general grounds, that the field-theoretical approach becomes meaningful in practice only if the effects of fluctuations around instantons are taken into account.Working with a systematic cumulant expansion, it turns out that the integration of fluctuations yields, in leading perturbative order, to an effective description of the Burgers stochastic dynamics given by the renormalization of its associated heat kernel propagator and the external force-force correlation function. | en |
dc.language | por | pt_BR |
dc.publisher | American Physical Society | pt_BR |
dc.relation.ispartof | Physical Review E | en |
dc.rights | Acesso Aberto | pt_BR |
dc.subject | Transition to turbulence | en |
dc.subject | Flow instability | en |
dc.subject | Hydrodynamics | en |
dc.title | Onset of intermittency in stochastic Burgers hydrodynamics | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1103/PhysRevE.99.033104 | pt_BR |
dc.description.resumo | Indisponível. | pt_BR |
dc.publisher.country | Brasil | pt_BR |
dc.publisher.department | Núcleo Interdisciplinar de Dinâmica dos Fluidos | pt_BR |
dc.subject.cnpq | CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS | pt_BR |
dc.citation.volume | 99 | pt_BR |
dc.citation.issue | 3 | pt_BR |
dc.embargo.terms | aberto | pt_BR |
Aparece en las colecciones: | Engenharias |
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Fichero | Descripción | Tamaño | Formato | |
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4-2019_Onset-of-intermittency-min.pdf | 282.82 kB | Adobe PDF | Visualizar/Abrir |
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