Reynolds stress budgets in Couette and boundary layer flows
22 p.
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2016
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sg-ntu-dr.10356-818652023-03-04T17:13:42Z Reynolds stress budgets in Couette and boundary layer flows Komminaho, Jukka Skote, Martin School of Mechanical and Aerospace Engineering Couette flow Boundary layer flow 22 p. Reynolds stress budgets for both Couette and boundary layer flows are evaluated and presented. Data are taken from direct numerical simulations of rotating and non-rotating plane turbulent Couette flow and turbulent boundary layer with and without adverse pressure gradient. Comparison of the total shear stress for the two types of flows suggests that the Couette case may be regarded as the high Reynolds number limit for the boundary layer flow close to the wall. The limit values of turbulence statistics close to the wall for the boundary layer for increasing Reynolds number approach the corresponding Couette flow values. The direction of rotation is chosen so that it has a stabilizing effect, whereas the adverse pressure gradient is destabilizing. The pressure-strain rate tensor in the Couette flow case is presented for a split into slow, rapid and Stokes terms. Most of the influence from rotation is located to the region close to the wall, and both the slow and rapid parts are affected. The anisotropy for the boundary layer decreases for higher Reynolds number, reflecting the larger separation of scales, and becomes close to that for Couette flow. The adverse pressure gradient has a strong weakening effect on the anisotropy. Accepted version 2016-07-27T07:49:54Z 2019-12-06T14:41:53Z 2016-07-27T07:49:54Z 2019-12-06T14:41:53Z 2002 2002 Journal Article Komminaho, J., & Skote, M. (2002). Reynolds Stress Budgets in Couette and Boundary Layer Flows. Flow, Turbulence and Combustion, 68(2), 167-192. 1386-6184 https://hdl.handle.net/10356/81865 http://hdl.handle.net/10220/41006 10.1023/A:1020404706293 135424 en Flow, Turbulence and Combustion © 2002 Kluwer Academic Publishers. This is the author created version of a work that has been peer reviewed and accepted for publication by Flow, Turbulence and Combustion, Kluwer Academic Publishers. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1023/A:1020404706293]. application/pdf |
| institution |
Nanyang Technological University |
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NTU Library |
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Asia |
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Singapore Singapore |
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NTU Library |
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| language |
English |
| topic |
Couette flow Boundary layer flow |
| spellingShingle |
Couette flow Boundary layer flow Komminaho, Jukka Skote, Martin Reynolds stress budgets in Couette and boundary layer flows |
| description |
22 p. |
| author2 |
School of Mechanical and Aerospace Engineering |
| author_facet |
School of Mechanical and Aerospace Engineering Komminaho, Jukka Skote, Martin |
| format |
Article |
| author |
Komminaho, Jukka Skote, Martin |
| author_sort |
Komminaho, Jukka |
| title |
Reynolds stress budgets in Couette and boundary layer flows |
| title_short |
Reynolds stress budgets in Couette and boundary layer flows |
| title_full |
Reynolds stress budgets in Couette and boundary layer flows |
| title_fullStr |
Reynolds stress budgets in Couette and boundary layer flows |
| title_full_unstemmed |
Reynolds stress budgets in Couette and boundary layer flows |
| title_sort |
reynolds stress budgets in couette and boundary layer flows |
| publishDate |
2016 |
| url |
https://hdl.handle.net/10356/81865 http://hdl.handle.net/10220/41006 |
| _version_ |
1759853800120647680 |