Abstract
A new type of self-induced free surface oscillation (swell flapping) was discovered in a system with a jet, a free surface and a structure. An upward round jet was injected into a cylindrical tank from the bottom center. The jet impinged on the bottom of a cylindrical rod (UIS) which was set just beneath the free surface, resulting in separation of the jet. In a certain condition, the separated jet oscillated, forming a flapping swell of the free surface around UIS, i.e., swell flapping. The inlet jet did not oscillate. The onset condition of the swell flapping depended mainly on the jet inlet velocity and UIS depth. The frequency of the swell flapping was different from that of sloshing, and depended mainly on jet inlet velocity and UIS depth. The oscillation was considered to be excited by the interaction between the separated jet and the free surface.
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 callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
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.
