PROOF COPY 019806PHF Path instability of rising spheroidal air bubbles: A shape-controlled process

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Paths and wakes of deformable nearly spheroidal rising bubbles close to the transition to path instability (2016, methodology): “According to [9], the paths observed in silicon oil corresponding to Mo = 1.”
Wake-Induced Oscillatory Paths of Bodies Freely Rising or Falling in Fluids (2012, methodology): “An experimental confirmation arose with experiments performed in various silicone oils (Zenit & Magnaudet 2008), in which the onset of path instability was found to coincide with the ωc criteria indicated in Section 3, once the aspect ratio χ is corrected from the slight fore/aft asymmetry of real…”
Bubbly and Buoyant Particle–Laden Turbulent Flows (2020, background): “The oblate ellipsoids provides an approximation of the mean deformed shapes of millimetric air bubbles in water (Ravelet et al. 2011; Zenit and Magnaudet 2008).”
Agitation, Mixing, and Transfers Induced by Bubbles (2018, result): “This criterion was in agreement with experiments conducted by Zenit & Magnaudet (2008) involving bubbles rising in pure silicone oil and corresponded to a bubble aspect ratio of 2 for Re > 100.”