Abstract
An experimental and numerical study has been conducted to investigate the properties of irregular wave boundary layers on a rough bottom. Detailed measurement of velocity profiles was done using 1D Laser Doppler Anemometer. It was observed that the turbulence might persist under a free-stream Reynolds numbers within laminar range. The original version of k - ω odel and two versions of two-layer k - ω models have been used to predict the boundary layer properties under experimental conditions. It was found that the model could reproduce the shear stress variation in time quite successfully but the magnitude could not be predicted adequately. This discrepancy may partly be due to the estimation of the shear stress from the velocity data by log-law.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004 |
| Publisher | American Society of Civil Engineers (ASCE) |
| Pages | 521-528 |
| Number of pages | 8 |
| Volume | 2005-January |
| ISBN (Electronic) | 9789812562982, 9789812562982 |
| DOIs | |
| Publication status | Published - Apr 1 2005 |
| Event | 29th International Conference on Coastal Engineering, ICCE 2004 - Lisbon, Portugal Duration: Sep 19 2004 → Sep 24 2004 |
Other
| Other | 29th International Conference on Coastal Engineering, ICCE 2004 |
|---|---|
| Country | Portugal |
| City | Lisbon |
| Period | 9/19/04 → 9/24/04 |
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ASJC Scopus subject areas
- Civil and Structural Engineering
- Ocean Engineering
- Oceanography
Cite this
Experimental and numerical study of irregular wave boundary layers on a rough bottom. / Sana, Ahmad; Tanaka, Hitoshi; Suzuki, Takeshi.
Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004. Vol. 2005-January American Society of Civil Engineers (ASCE), 2005. p. 521-528.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Experimental and numerical study of irregular wave boundary layers on a rough bottom
AU - Sana, Ahmad
AU - Tanaka, Hitoshi
AU - Suzuki, Takeshi
PY - 2005/4/1
Y1 - 2005/4/1
N2 - An experimental and numerical study has been conducted to investigate the properties of irregular wave boundary layers on a rough bottom. Detailed measurement of velocity profiles was done using 1D Laser Doppler Anemometer. It was observed that the turbulence might persist under a free-stream Reynolds numbers within laminar range. The original version of k - ω odel and two versions of two-layer k - ω models have been used to predict the boundary layer properties under experimental conditions. It was found that the model could reproduce the shear stress variation in time quite successfully but the magnitude could not be predicted adequately. This discrepancy may partly be due to the estimation of the shear stress from the velocity data by log-law.
AB - An experimental and numerical study has been conducted to investigate the properties of irregular wave boundary layers on a rough bottom. Detailed measurement of velocity profiles was done using 1D Laser Doppler Anemometer. It was observed that the turbulence might persist under a free-stream Reynolds numbers within laminar range. The original version of k - ω odel and two versions of two-layer k - ω models have been used to predict the boundary layer properties under experimental conditions. It was found that the model could reproduce the shear stress variation in time quite successfully but the magnitude could not be predicted adequately. This discrepancy may partly be due to the estimation of the shear stress from the velocity data by log-law.
UR - http://www.scopus.com/inward/record.url?scp=84950308251&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84950308251&partnerID=8YFLogxK
U2 - 10.1142/9789812701916-0041
DO - 10.1142/9789812701916-0041
M3 - Conference contribution
VL - 2005-January
SP - 521
EP - 528
BT - Proceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004
PB - American Society of Civil Engineers (ASCE)
ER -