Investigation of the vortex ring transition using scanning Tomo-PIV

• Published in: Experiments in fluids Vol. 58; no. 4; pp. 1 - 12
• Main Authors: Sun, Zhengzhong, Brücker, Christoph
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2017; Springer Nature B.V
• Subjects: Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics; Fluid dynamics; Fluid flow; Fluid- and Aerodynamics; Heat and Mass Transfer; Particle trajectories; Radial velocity; Research Article; Statistical analysis; Vortex rings; Vorticity; Wavelengths; Vortex Ring; Axial Velocity; Secondary Vortex; Radial Velocity Component; Vorticity

The transition of a vortex ring at Re Γ  = 5030 is studied by time-resolved scanning tomographic PIV technique. The transition process is first analyzed through flow quantities such as circulation and vorticity components. Using the volumetric measurement technique, vortical organization of the vort...