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Large-eddy simulations of turbulent mixing layers using the stretched-vortex model
The stretched-vortex subgrid model is used to run large-eddy simulations of temporal mixing layers at various Reynolds and Schmidt numbers, with different initial and boundary conditions. A self-similar flow is obtained, during which the growth rate, mean velocity and Reynolds stresses are in accord...
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| Published in: | Journal of fluid mechanics 2011-03, Vol.671, p.507-534 |
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| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c411t-9ba2328d711b84c31c8985feb6d75fae1fdf38cf73367f7efd6f76d522d5d34e3 |
| container_end_page | 534 |
| container_issue | |
| container_start_page | 507 |
| container_title | Journal of fluid mechanics |
| container_volume | 671 |
| creator | MATTNER, T. W. |
| description | The stretched-vortex subgrid model is used to run large-eddy simulations of temporal mixing layers at various Reynolds and Schmidt numbers, with different initial and boundary conditions. A self-similar flow is obtained, during which the growth rate, mean velocity and Reynolds stresses are in accord with experimental results. However, predictions of the amount of mixed fluid, and of the variation in its composition across the layer, are excessive, especially at high Schmidt number. More favourable comparisons between experiment and simulation are obtained when the large-scale flow is quasi-two-dimensional; however, such states are not self-similar and not sustainable. Present model assumptions lead to predictions of the continued subgrid spectrum with a viscous cutoff that is dependent on grid resolution. |
| doi_str_mv | 10.1017/S002211201000580X |
| format | article |
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Present model assumptions lead to predictions of the continued subgrid spectrum with a viscous cutoff that is dependent on grid resolution.</description><identifier>ISSN: 0022-1120</identifier><identifier>EISSN: 1469-7645</identifier><identifier>DOI: 10.1017/S002211201000580X</identifier><identifier>CODEN: JFLSA7</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Boundary conditions ; Boundary layer ; Computational fluid dynamics ; Exact sciences and technology ; Fluid dynamics ; Fluid flow ; Fluid mechanics ; Fundamental areas of phenomenology (including applications) ; Large eddy simulation ; Marine ; Mathematical models ; Physics ; Reynolds number ; Schmidt number ; Self-similarity ; Thick shear flows ; Turbulence ; Turbulence models ; Turbulence simulation and modeling ; Turbulent flow ; Turbulent flows, convection, and heat transfer ; Turbulent mixing</subject><ispartof>Journal of fluid mechanics, 2011-03, Vol.671, p.507-534</ispartof><rights>Copyright © Cambridge University Press 2011</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c411t-9ba2328d711b84c31c8985feb6d75fae1fdf38cf73367f7efd6f76d522d5d34e3</citedby><cites>FETCH-LOGICAL-c411t-9ba2328d711b84c31c8985feb6d75fae1fdf38cf73367f7efd6f76d522d5d34e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S002211201000580X/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,72709</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23947884$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>MATTNER, T. 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W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Large-eddy simulations of turbulent mixing layers using the stretched-vortex model</atitle><jtitle>Journal of fluid mechanics</jtitle><addtitle>J. Fluid Mech</addtitle><date>2011-03-25</date><risdate>2011</risdate><volume>671</volume><spage>507</spage><epage>534</epage><pages>507-534</pages><issn>0022-1120</issn><eissn>1469-7645</eissn><coden>JFLSA7</coden><abstract>The stretched-vortex subgrid model is used to run large-eddy simulations of temporal mixing layers at various Reynolds and Schmidt numbers, with different initial and boundary conditions. A self-similar flow is obtained, during which the growth rate, mean velocity and Reynolds stresses are in accord with experimental results. However, predictions of the amount of mixed fluid, and of the variation in its composition across the layer, are excessive, especially at high Schmidt number. 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| identifier | ISSN: 0022-1120 |
| ispartof | Journal of fluid mechanics, 2011-03, Vol.671, p.507-534 |
| issn | 0022-1120 1469-7645 |
| language | eng |
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| source | Cambridge University Press |
| subjects | Boundary conditions Boundary layer Computational fluid dynamics Exact sciences and technology Fluid dynamics Fluid flow Fluid mechanics Fundamental areas of phenomenology (including applications) Large eddy simulation Marine Mathematical models Physics Reynolds number Schmidt number Self-similarity Thick shear flows Turbulence Turbulence models Turbulence simulation and modeling Turbulent flow Turbulent flows, convection, and heat transfer Turbulent mixing |
| title | Large-eddy simulations of turbulent mixing layers using the stretched-vortex model |
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