Structure function scaling in a Reλ = 250 turbulent mixing layer

Handle URI:
http://hdl.handle.net/10754/554388
Title:
Structure function scaling in a Reλ = 250 turbulent mixing layer
Authors:
Attili, Antonio; Bisetti, Fabrizio ( 0000-0001-5162-7805 )
Abstract:
A highly resolved Direct Numerical Simulation of a spatially developing turbulent mixing layer is presented. In the fully developed region, the flow achieves a turbulent Reynolds number Reλ = 250, high enough for a clear separation between large and dissipative scales, so for the presence of an inertial range. Structure functions have been calculated in the self-similar region using velocity time series and Taylor's frozen turbulence hypothesis. The Extended Self-Similarity (ESS) concept has been employed to evaluate relative scaling exponents. A wide range of scales with scaling exponents and intermittency levels equal to homogeneous isotropic turbulence has been identified. Moreover an additional scaling range exists for larger scales; it is characterized by smaller exponents, similar to the values reported in the literature for flows with strong shear.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division
Citation:
Structure function scaling in a Reλ = 250 turbulent mixing layer 2011, 318 (4):042001 Journal of Physics: Conference Series
Publisher:
IOP Publishing
Journal:
Journal of Physics: Conference Series
Conference/Event name:
13th European Turbulence Conference, ETC13
Issue Date:
22-Dec-2011
DOI:
10.1088/1742-6596/318/4/042001
Type:
Conference Paper
ISSN:
1742-6596
Additional Links:
http://stacks.iop.org/1742-6596/318/i=4/a=042001?key=crossref.98eade4edb9144e1ba7e44a0c4192bff
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division; Clean Combustion Research Center; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorAttili, Antonioen
dc.contributor.authorBisetti, Fabrizioen
dc.date.accessioned2015-05-21T07:07:22Zen
dc.date.available2015-05-21T07:07:22Zen
dc.date.issued2011-12-22en
dc.identifier.citationStructure function scaling in a Reλ = 250 turbulent mixing layer 2011, 318 (4):042001 Journal of Physics: Conference Seriesen
dc.identifier.issn1742-6596en
dc.identifier.doi10.1088/1742-6596/318/4/042001en
dc.identifier.urihttp://hdl.handle.net/10754/554388en
dc.description.abstractA highly resolved Direct Numerical Simulation of a spatially developing turbulent mixing layer is presented. In the fully developed region, the flow achieves a turbulent Reynolds number Reλ = 250, high enough for a clear separation between large and dissipative scales, so for the presence of an inertial range. Structure functions have been calculated in the self-similar region using velocity time series and Taylor's frozen turbulence hypothesis. The Extended Self-Similarity (ESS) concept has been employed to evaluate relative scaling exponents. A wide range of scales with scaling exponents and intermittency levels equal to homogeneous isotropic turbulence has been identified. Moreover an additional scaling range exists for larger scales; it is characterized by smaller exponents, similar to the values reported in the literature for flows with strong shear.en
dc.publisherIOP Publishingen
dc.relation.urlhttp://stacks.iop.org/1742-6596/318/i=4/a=042001?key=crossref.98eade4edb9144e1ba7e44a0c4192bffen
dc.rightsArchived with thanks to Journal of Physics: Conference Series http://creativecommons.org/licenses/by/3.0/en
dc.titleStructure function scaling in a Reλ = 250 turbulent mixing layeren
dc.typeConference Paperen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Physics: Conference Seriesen
dc.conference.date2011-09-12 to 2011-09-15en
dc.conference.name13th European Turbulence Conference, ETC13en
dc.conference.locationWarsaw, POLen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorAttili, Antonioen
kaust.authorBisetti, Fabrizioen
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