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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Bergstrom, D. J. Akinlade, O. G. Tachie, M. F. |
| Copyright Year | 2005 |
| Abstract | In this paper, we propose a novel skin friction correlation for a zero pressure gradient turbulent boundary layer over surfaces with different roughness characteristics. The experimental data sets were obtained on a hydraulically smooth and ten different rough surfaces created from sand paper, perforated sheet, and woven wire mesh. The physical size and geometry of the roughness elements and freestream velocity were chosen to encompass both transitionally rough and fully rough flow regimes. The flow Reynolds number based on momentum thickness ranged from 3730 to 13,550. We propose a correlation that relates the skin friction, Cf, to the ratio of the displacement and boundary layer thicknesses, δ*∕δ, which is valid for both smooth and rough wall flows. The results indicate that the ratio Cf1∕2∕(δ*∕δ) is approximately constant, irrespective of the Reynolds number and surface condition. |
| Starting Page | 1146 |
| Ending Page | 1153 |
| Page Count | 8 |
| File Format | |
| ISSN | 00982202 |
| e-ISSN | 1528901X |
| Journal | Journal of Fluids Engineering |
| Volume Number | 127 |
| Issue Number | 6 |
| DOI | 10.1115/1.2073288 |
| Language | English |
| Publisher | The American Society of Mechanical Engineers |
| Publisher Date | 2005-04-28 |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Boundary layer turbulence Boundary layers Flow (Dynamics) Friction Reynolds number Skin friction (Fluid dynamics) Surface roughness Thickness |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanical Engineering |
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