Study on the flow structure behind a freely falling annular disk using proper orthogonal decomposition

DOI10.1016/J.EUROMECHFLU.2020.09.005zbMath1478.76030OpenAlexW3085299827MaRDI QIDQ821178

Dianfang Bi, Raf Theunissen, Ying-Jie Wei, Hao Xu

Publication date: 20 September 2021

Published in: European Journal of Mechanics. B. Fluids (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.euromechflu.2020.09.005

zbMATH Keywords

proper orthogonal decompositionexperimental verificationcoherent vortex structureshelical motioneigenvalue convergencevibration motion

Mathematics Subject Classification ID

Experimental work for problems pertaining to fluid mechanics (76-05) Incompressible viscous fluids (76D99) Viscous vortex flows (76D17)

Uses Software

• PIVlab

Cites Work

• Wake-Induced Oscillatory Paths of Bodies Freely Rising or Falling in Fluids
• Force measurements on rising bubbles
• Coherent structure in a turbulent jet via a vector implementation of the proper orthogonal decomposition
• Drag and wakes of freely falling 60° cones at intermediate Reynolds numbers
• Experimental investigation of freely falling thin disks. Part 1. The flow structures and Reynolds number effects on the zigzag motion
• Falling styles of disks
• Three coins in a fountain
• The far downstream evolution of the high-Reynolds-number axisymmetric wake behind a disk. Part 2. Slice proper orthogonal decomposition
• The behaviour of freely falling cylinders and cones in a viscous fluid

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