Abstract
In a deep, turbulent flow with negligible advection, flowing over a surface roughened by regularly spaced, two-dimensional roughness elements, measured Reynolds shear stress decreased as the surface was approached. The depth of the region of shear-stress deficit was of the order of ten element spacings. Streamwise variations in mean velocities were unable to account for the magnitude of the shear-stress deficit, and the log-law estimate of surface shear disagreed with that measured directly by a drag balance. The data are presented as further information on a puzzling phenomenon.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
