Abstract
An in-line tube array with intermediate tube spacings was tested in a wind tunnel and a water channel. Extensive flow visualization and correlation measurements were carried out to reveal the nature of the vorticity-shedding excitation. The instability of the jet issuing between the tubes is found to be the source of the vorticity-shedding excitation. The jet instability occurs at its symmetric mode, whereupon large-scale vortices are formed symmetrically on both sides of each flow lane. Since the jet instability in each flow lane is 180° out of phase with that in the neighbouring lanes, vortices are formed antisymmetrically in the tube wakes.
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.
