Modeling of Turbulent Fluid Flow Over a Rough Wall With or Without SuctionSource: Journal of Fluids Engineering:;2003:;volume( 125 ):;issue: 004::page 636Author:G. Grégoire
,
Ph.D. Student
,
F. Julien Saint Amand
,
Research Scientist
,
M. Favre-Marinet
DOI: 10.1115/1.1593705Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The turbulent flow close to a wall with two-dimensional roughness is computed with a two-layer zonal model. For an impermeable wall, the classical logarithmic law compares well with the numerical results if the location of the fictitious wall modeling the surface is considered at the top of the rough boundary. The model developed by Wilcox for smooth walls is modified to account for the surface roughness and gives satisfactory results, especially for the friction coefficient, for the case of boundary layer suction.
keyword(s): Flow (Dynamics) , Friction , Turbulence , Suction , Surface roughness , Modeling AND Computation ,
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| contributor author | G. Grégoire | |
| contributor author | Ph.D. Student | |
| contributor author | F. Julien Saint Amand | |
| contributor author | Research Scientist | |
| contributor author | M. Favre-Marinet | |
| date accessioned | 2017-05-09T00:10:31Z | |
| date available | 2017-05-09T00:10:31Z | |
| date copyright | July, 2003 | |
| date issued | 2003 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27187#636_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/128571 | |
| description abstract | The turbulent flow close to a wall with two-dimensional roughness is computed with a two-layer zonal model. For an impermeable wall, the classical logarithmic law compares well with the numerical results if the location of the fictitious wall modeling the surface is considered at the top of the rough boundary. The model developed by Wilcox for smooth walls is modified to account for the surface roughness and gives satisfactory results, especially for the friction coefficient, for the case of boundary layer suction. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Modeling of Turbulent Fluid Flow Over a Rough Wall With or Without Suction | |
| type | Journal Paper | |
| journal volume | 125 | |
| journal issue | 4 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.1593705 | |
| journal fristpage | 636 | |
| journal lastpage | 642 | |
| identifier eissn | 1528-901X | |
| keywords | Flow (Dynamics) | |
| keywords | Friction | |
| keywords | Turbulence | |
| keywords | Suction | |
| keywords | Surface roughness | |
| keywords | Modeling AND Computation | |
| tree | Journal of Fluids Engineering:;2003:;volume( 125 ):;issue: 004 | |
| contenttype | Fulltext |