Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Turbulence and shear stress around offshore wind turbine pile in tidal currents using particle image velocimetry
AU - McGovern, David
AU - Ilic, Suzana
AU - Folkard, Andrew
AU - McClelland, Stuart
AU - Murphy, Brendan
PY - 2009
Y1 - 2009
N2 - The three-dimensional spatial characteristics of velocity and turbulence of tidal flow around an offshore wind turbine model have been measured using the technique of Particle Image Velocimetry, (PIV). This approach allows for the instantaneous velocity measurement in large volumes of water. This paper presents analysis of velocity and turbulence parameters in the wake flow behind a cylinder for different tidal stages. The wake flow behind a cylinder is highly complex making it difficult to characterise using point measurement techniques in the laboratory, and model numerically. The PIV measurements enabled the derivation of detailed velocity vector maps, turbulence intensities, kinetic energy and Reynolds stresses across the water column. Results showed a clear flow separation zone between reversed and stream-wise flow in the wake, the structure of which depends on flow velocity and water depth.
AB - The three-dimensional spatial characteristics of velocity and turbulence of tidal flow around an offshore wind turbine model have been measured using the technique of Particle Image Velocimetry, (PIV). This approach allows for the instantaneous velocity measurement in large volumes of water. This paper presents analysis of velocity and turbulence parameters in the wake flow behind a cylinder for different tidal stages. The wake flow behind a cylinder is highly complex making it difficult to characterise using point measurement techniques in the laboratory, and model numerically. The PIV measurements enabled the derivation of detailed velocity vector maps, turbulence intensities, kinetic energy and Reynolds stresses across the water column. Results showed a clear flow separation zone between reversed and stream-wise flow in the wake, the structure of which depends on flow velocity and water depth.
KW - offshore wind turbine
KW - PIV
KW - shear stress
KW - turbulence
U2 - 10.1142/9789814282475_0140
DO - 10.1142/9789814282475_0140
M3 - Conference contribution/Paper
SN - 9789814282468
BT - Proceedings of Coastal Dynamics 2009
A2 - Mizuguchi, Masaru
A2 - Sato, Shinji
PB - World Scientific Publishing
CY - Singapore
T2 - 6th International Conference on Coastal Dynamics
Y2 - 7 September 2009 through 11 September 2009
ER -