Flow transitions in collisions between vortex-rings and density interfaces

• Main Authors: Yeo, Kye Wei B., Koh, J. Y., Long, J., New, Tze How
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Mechanical engineering; Vortex-Ring; Collision
• Online Access: https://hdl.handle.net/10356/160898
• Institution: Nanyang Technological University

Flow transitions and vortical developments during vortex-ring collisions with a sharp water–oil density interface are studied using planar laser-induced fluorescence and time-resolved particle-image velocimetry techniques. Circular vortex-rings at Reynolds numbers of Re = 1000 , 2000 and 4000 collid...