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dc.contributor.authorSadhukhan, Shubhadeep
dc.contributor.authorSamuel, Roshan
dc.contributor.authorPlunian, Franck
dc.contributor.authorStepanov, Rodion
dc.contributor.authorSamtaney, Ravi
dc.contributor.authorVerma, Mahendra Kumar
dc.date.accessioned2019-10-03T08:09:27Z
dc.date.available2019-10-03T08:09:27Z
dc.date.issued2019-08-28
dc.identifier.citationSadhukhan, S., Samuel, R., Plunian, F., Stepanov, R., Samtaney, R., & Verma, M. K. (2019). Enstrophy transfers in helical turbulence. Physical Review Fluids, 4(8). doi:10.1103/physrevfluids.4.084607
dc.identifier.doi10.1103/PhysRevFluids.4.084607
dc.identifier.urihttp://hdl.handle.net/10754/656854
dc.description.abstractIn this paper we study the enstrophy transfers in helical turbulence using direct numerical simulation. We observe that the helicity injection does not have significant effects on the inertial-range energy and helicity spectra (∼k-5/3) and fluxes (constants). We also calculate the separate contributions to enstrophy transfers via velocity-to-vorticity and vorticity-to-vorticity channels. There are four different enstrophy fluxes associated with the former channel or vorticity stretching, and one flux associated with the latter channel or vorticity advection. In the inertial range, the fluxes due to vorticity stretching are larger than that due to advection. These transfers too are insensitive to helicity injection.
dc.description.sponsorshipOur numerical simulations have been performed on Shaheen II at the Kaust supercomputing laboratory, Saudi Arabia, under the project k1052. This work was supported by the research grants PLANEX/PHY/2015239 from the Indian Space Research Organisation, India, and by the Department of Science and Technology, India (INT/RUS/RSF/P-03).
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttps://link.aps.org/doi/10.1103/PhysRevFluids.4.084607
dc.rightsArchived with thanks to Physical Review Fluids
dc.titleEnstrophy transfers in helical turbulence
dc.typeArticle
dc.contributor.departmentFluid and Plasma Simulation Group (FPS)
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalPhysical Review Fluids
dc.eprint.versionPublisher's version/PDF
dc.contributor.institutionDepartment of Physics, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
dc.contributor.institutionDepartment of Mechanical Engineering, Indian Institute of Technology, Kanpur 208016, India
dc.contributor.institutionUniversité Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
dc.contributor.institutionInstitute of Continuous Media Mechanics UB RAS, Perm, Russian Federation
dc.identifier.arxivid2004.10621
kaust.personSamtaney, Ravi
kaust.grant.numberk1052
refterms.dateFOA2019-12-15T11:29:12Z
kaust.acknowledged.supportUnitKaust supercomputing laboratory


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