Abstract
The behavior of a planar jet impinging on a V-shaped plate is studied experimentally by means of pressure and velocity measurements and flow visualization. The plate with a symmetrically variable opening angle is located downstream at distance L from the jet exit. Data indicate that, for the presence of the plate, not only the large-scaled coherent structures in the shear layers exist in the jet, but also the whole jet column exhibits a prominent periodic flapping motion with a preferred frequency fF in the flowfield. Results also show an unstable regime occurring for the flapping motion, in which the criteria to determine the boundary of the regime are governed by the location and the opening angle of the plate. Moreover, the nondimensional Strouhal number fpL/Uj is found to maintain a constant value of 0.11, and this value is nearly insensitive to the opening angle of the plate in the operating Reynolds number range.
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.
