Testing a Missing Spectral Link in Turbulence
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | KELLAY, Hamid | |
| hal.structure.identifier | Department of Mechanical Science and Engineering [Urbana] | |
| dc.contributor.author | TRAN, Tuan | |
| hal.structure.identifier | Department of Physics and Astronomy [Pittsburgh] | |
| dc.contributor.author | GOLDBURG, Walter | |
| hal.structure.identifier | Department of Physics | |
| dc.contributor.author | GOLDENFELD, Nigel | |
| hal.structure.identifier | Department of Mechanical Science and Engineering [Urbana] | |
| hal.structure.identifier | Continuum Physics Unit | |
| dc.contributor.author | GIOIA, Gustavo | |
| hal.structure.identifier | Department of Geology | |
| hal.structure.identifier | Fluid Mechanics Unit | |
| dc.contributor.author | CHAKRABORTY, Pinaki | |
| dc.date.created | 2012-04-06 | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0031-9007 | |
| dc.description.abstractEn | Although the cardinal attribute of turbulence is the velocity fluctuations, these fluctuations have been ignored in theories of the frictional drag of turbulent flows. Our goal is to test a new theory that links the frictional drag to the spectral exponent α, a property of the velocity fluctuations in a flow. We use a soap-film channel wherein for the first time the value of α can be switched between 3 and 5/3, the two theoretically possible values in soap-film flows. To induce turbulence with α=5/3, we make one of the edges of the soap-film channel serrated. Remarkably, the new theory of the frictional drag holds in both soap-film flows (for either value of the spectral exponent α) and ordinary pipe flows (where α=5/3), even though these types of flow are governed by different equations. | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.title.en | Testing a Missing Spectral Link in Turbulence | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PHYSREVLETT.109.254502 | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn] | |
| bordeaux.journal | Physical Review Letters | |
| bordeaux.page | 254502 (1-5) | |
| bordeaux.volume | 109 | |
| bordeaux.issue | 25 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00789016 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00789016v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20Letters&rft.date=2012&rft.volume=109&rft.issue=25&rft.spage=254502%20(1-5)&rft.epage=254502%20(1-5)&rft.eissn=0031-9007&rft.issn=0031-9007&rft.au=KELLAY,%20Hamid&TRAN,%20Tuan&GOLDBURG,%20Walter&GOLDENFELD,%20Nigel&GIOIA,%20Gustavo&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||