Wake-Induced Oscillatory Paths of Bodies Freely Rising or Falling in Fluids: Supplemental Video 5b

A supplemental video from the 2012 review by Patricia Ern, Frédéric Risso, David Fabre, and Jacques Magnaudet, "Wake-Induced Oscillatory Paths of Bodies Freely Rising or Falling in Fluids," from the Annual Review of Fluid Mechanics.

Supplemental Videos 5a and b show two perpendicular views of the wake past a short cylinder with χ = 10 and Ar = 80 rising in zigzag [from a DNS by Auguste (2010)]. The wake is visualized with an isosurface of the λ₂ criterion (Jeong & Hussain 1995), the color reflecting the sign and magnitude of the streamwise vorticity.