Flow in Turbulent Wall Layer Over Uniform RoughnessSource: Journal of Applied Mechanics:;1973:;volume( 040 ):;issue: 004::page 863Author:Jin Wu
DOI: 10.1115/1.3423176Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A boundary-layer survey has been conducted on a rough plate consisting of uniform spherical particles arranged in a random and compact fashion. Strong turbulent mixing was observed in a region within a quarter of the particle size from the top of the particles. Such mixing is important to transfer or transport processes near a rough wall. The data of the normal axis of the present rough surface are found to be located at a distance of 1/50 of the particle diameter below the top of the particles. This reference data are different from that used by Nikuradse, indicating a possible modification of some numerical constants determined by Nikuradse.
keyword(s): Turbulence , Surface roughness , Flow (Dynamics) , Particulate matter , Boundary layers , Particle size AND Transport processes ,
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| contributor author | Jin Wu | |
| date accessioned | 2017-05-09T01:35:36Z | |
| date available | 2017-05-09T01:35:36Z | |
| date copyright | December, 1973 | |
| date issued | 1973 | |
| identifier issn | 0021-8936 | |
| identifier other | JAMCAV-25994#863_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/163327 | |
| description abstract | A boundary-layer survey has been conducted on a rough plate consisting of uniform spherical particles arranged in a random and compact fashion. Strong turbulent mixing was observed in a region within a quarter of the particle size from the top of the particles. Such mixing is important to transfer or transport processes near a rough wall. The data of the normal axis of the present rough surface are found to be located at a distance of 1/50 of the particle diameter below the top of the particles. This reference data are different from that used by Nikuradse, indicating a possible modification of some numerical constants determined by Nikuradse. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Flow in Turbulent Wall Layer Over Uniform Roughness | |
| type | Journal Paper | |
| journal volume | 40 | |
| journal issue | 4 | |
| journal title | Journal of Applied Mechanics | |
| identifier doi | 10.1115/1.3423176 | |
| journal fristpage | 863 | |
| journal lastpage | 867 | |
| identifier eissn | 1528-9036 | |
| keywords | Turbulence | |
| keywords | Surface roughness | |
| keywords | Flow (Dynamics) | |
| keywords | Particulate matter | |
| keywords | Boundary layers | |
| keywords | Particle size AND Transport processes | |
| tree | Journal of Applied Mechanics:;1973:;volume( 040 ):;issue: 004 | |
| contenttype | Fulltext |