| Original Articles |
|
|
|
|
Effect of Surface Roughness and Reynolds Number on Self-Similarity of Velocity Profile in the Atmospheric Boundary Layer |
| LIN Jian-Zhong1,2;LI Hui-Jun1;ZHANG Kai1 |
| 1Department of Mechanics, Zhejiang University, Hangzhou 3100272China Jiliang University, Hangzhou 310018 |
|
| Cite this article: |
|
LIN Jian-Zhong, LI Hui-Jun, ZHANG Kai 2008 Chin. Phys. Lett. 25 1008-1010 |
|
|
|
Abstract Self-similarity of power law velocity profile of a simulated atmospheric boundary layer is studied experimentally. The results demonstrate that the self-similarity maintains very well along the streamwise direction for the same rough surface but changes significantly with the surface roughness at the
same position. The self-similarity of the vertical velocity profiles is affected by enhancement of the free stream velocity when the roughness concentration is relatively denser.
|
| Keywords:
47.27.Nb
47.50.Ef
|
|
|
Received: 22 September 2007
Published: 27 February 2008
|
|
|
|
|
|
|
|
[1] Zhou Y, Li X L, Fu D X and Ma Y W 2007 Chin. Phys.Lett. 24 147
[2] Lin J Z, Li H J and Zhang K 2007 Chin. Phys. 16 2033
[3] Iyengar A K S and Farell C 2001 J. Wind Eng. Ind.Aerodyn. 89 1059
[4] Wieringa J 1993 Boundary-Layer Meteorol. 63323
[5] Theurer W 1993 PhD Thesis (University of Karlsruhe)
[6] Irwin H P A H 1979 NAE Report LTR-LA-233
[7] George W K and Castillo L 1997 Appl. Mech. Rev. 50 689
[8] Barenblatt G I 1993 J. Fluid Mech. 248 513
[9] Zagarola M V, Perry A E and Smits A J 1997 Phys.Fluids 9 2094 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
