Abstract
Air flow distributions and turbulent properties in the boundary layer over wind waves have been investigated by using PIV. Two regions adapted a logarithmic law were found in a vertical distribution of stream wise mean air flow. One of the logarithmic law regions is close to wavy surface and another called the middle layer is located upon the lower logarithmic law region. The friction velocity calculated from the middle layer corresponded to the Reynolds stress in a constant stress layer close to wavy surface region. The mixing length, l calculated from the experimental data showed that there were larger vortices than Prandtl's mixing length hypothesis, l = κy close to wavy surface for Case03 and 04. It was considered that the larger vortices were generated by air flow separation from wave crests.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
