Fine structure of the turbulent atmospheric boundary layer over the water surface |
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Authors: | Yu I Troitskaya D A Sergeev O S Ermakova G N Balandina |
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Institution: | (1) Department of Mechanical and Industrial Engineering, Concordia University, H3G 1M8 Montreal, QC, Canada; |
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Abstract: | In this paper, the results of a laboratory experiment on investigating the wind-velocity field over a water surface using
the PIV method are described. The use of a rapid CCD-camera made it possible to perform a detailed study of the eddy structure
of airflow. We have measured the velocity fields over a flat plate by wind waves and waves induced by a wave generator. The
model of a turbulent boundary layer over a rough surface was directly verified. It has been shown that the wind-velocity profiles
over waves obtained by averaging the instantaneous fields over the ensemble of samples and horizontal coordinate are satisfactorily
consistent with the profiles calculated within the frameworks of the model of wind flow over rough water surface. |
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