| Home | Organizers | Proceedings Editors | Proceedings Contributors | Search | | ||
|
|
|||
|
||||
|
|
||||
| Title: | EXPERIMENTAL AND NUMERICAL STUDY OF IRREGULAR WAVE BOUNDARY LAYERS ON A ROUGH BOTTOM | |
| DOI No: | 10.1142/9789812701916_0041 | |
| Source: | COASTAL ENGINEERING 2004 (pp 521-528) | |
| Author(s): | AHMAD SANA
Department of Civil and Architectural Engrg., Sultan Qaboos University, PO Box 33, Muscat 123, Sultanate of Oman, Oman HITOSHI TANAKA Department of Civil Engineering, Tohoku University, 06 Aoba, Sendai 980-8579, Japan TAKESHI SUZUKI, Civil Engineer Tohoku Electric Power Co. Inc., 3-7-1 Ichibancho, Aoba, Sendai 980-8550, Japan |
|
| 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 model 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. | |
| Full Text: | View full text in PDF format (320KB) | |
| TOC: | Back to Table of Contents | |
|
||