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dc.contributor.authorKnaepen, B.en
dc.contributor.authorKassinos, Stavros C.en
dc.contributor.authorCarati, D.en
dc.creatorKnaepen, B.en
dc.creatorKassinos, Stavros C.en
dc.creatorCarati, D.en
dc.date.accessioned2019-05-06T12:23:53Z
dc.date.available2019-05-06T12:23:53Z
dc.date.issued2004
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/48494
dc.description.abstractWe consider the case of homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field at low to moderate magnetic Reynolds numbers (by moderate we mean here values as high as 20). When the magnetic Reynolds number is vanishingly small (Rm ≪ 1), it is customary to simplify the governing magnetohydrodynamic (MHD) equations using what is known as the quasi-static (QS) approximation. As the magnetic Reynolds number is increased, a progressive transition between the physics described by the QS approximation and the MHD equations occurs. We show here that this intermediate regime can be described by another approximation which we call the quasi-linear (QL) approximation. For the numerical simulations performed, the predictions of the QL approximation are in good agreement with those of MHD for magnetic Reynolds number up to Rm ∼20. © 2004 Cambridge University Press.en
dc.language.isoengen
dc.sourceJournal of Fluid Mechanicsen
dc.subjectMathematical modelsen
dc.subjectComputer simulationen
dc.subjectApproximation theoryen
dc.subjectLinear systemsen
dc.subjectReynolds numberen
dc.subjectTurbulenceen
dc.subjectMagnetic fieldsen
dc.subjectMagnetohydrodynamicsen
dc.subjectHomogeneous turbulenceen
dc.subjectConducting fluidsen
dc.subjectMagnetic reynolds numberen
dc.subjectUniform magnetic fieldsen
dc.titleMagnetohydrodynamic turbulence at moderate magnetic Reynolds numberen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1017/S0022112004000023
dc.description.volume513
dc.description.startingpage199
dc.description.endingpage220
dc.author.facultyΠολυτεχνική Σχολή / Faculty of Engineering
dc.author.departmentΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.type.uhtypeArticleen
dc.contributor.orcidKassinos, Stavros C. [0000-0002-3501-3851]
dc.description.totalnumpages199-220
dc.gnosis.orcid0000-0002-3501-3851


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