On the rise of an ellipsoidal bubble in water: oscillatory paths and liquid-induced velocity

By K. Ellingsen, F. Risso. Journal of Fluid Mechanics, 2001

294 citations recorded by the source corpus.

Subfields: Biomedical Engineering, Computational Mechanics, Ocean Engineering

View Paper: https://www.semanticscholar.org/paper/af6b8079340b19d71890661596cde7b37f58d776

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In Biomedical Engineering

In Computational Mechanics

In Ocean Engineering

Citations in the corpus

Wake-Induced Oscillatory Paths of Bodies Freely Rising or Falling in Fluids (2012, background): “A key feature of the kinematics of spheroidal bubbles is that the bubble velocity and minor axis are almost aligned along the whole path (Ellingsen & Risso 2001).”
A moving mesh finite volume interface tracking method for surface tension dominated interfacial fluid flow (2012, background): “The bubble shape in the considered range is stable and very closely resembles an oblate ellipsoid with the minor axis nearly in the direction of the tangent to the bubble path [53].”
Direct numerical simulations of gas/liquid multiphase flows (2011, background): “Recent experimental studies by Ellingsen and Risso (2001) suggest that the wobbling mode may be a transitionary phase and that wobbly bubbles would eventually rise along spiral paths, if one waited long enough.”
Instabilities and transition of a sphere falling or ascending freely in a Newtonian fluid (2004, background): “Ellingsen & Risso (2001) observe individual ascending bubbles (ρ0/ρ = 0) at G =390.”
Experimental characterization of the agitation generated by bubbles rising at high Reynolds number (2009, methodology): “The optical and electronic adjustments of the LDA set-up are the same as those used by Ellingsen & Risso (2001) who showed that the PDFs of horizontal and vertical liquid velocities, Ux and Uz, were obtained without bias in the range −0.7〈V 〉−0.7〈V 〉.”
Computational fluid dynamics of dispersed two-phase flows at high phase fractions (2003, methodology): “However, this is fortunate for the quantitative analysis since it is easier to determine the amplitude and frequency of a zigzag trajectory than a helical one, but it should be noted that Ellingsen and Risso [88] developed a method to analyse helical bubble motion.”
Agitation, Mixing, and Transfers Induced by Bubbles (2018, background): “However, because large–Reynolds number bubbles are in general not spherical and their interface is often contaminated by surfactant, a significant wake develops behind them (Brücker 1999, Ellingsen & Risso 2001).”
Planar shadow image velocimetry for the analysis of the hydrodynamics in bubbly flows (2007, result): “This is associated with a more pronounced zigzag or helical motion of the bubbles which was clearly shown by Ellingsen and Risso (2001). The bubble fluctuations obtained in the bubble column show a similar result with slightly lower fluctuations in the vertical direction.”
Wake instability of a fixed spheroidal bubble (2007, background): “Nevertheless, detailed stability analyses (Meiron 1989) and measurements making use of modern image processing (Ellingsen & Risso 2001) showed that this view was incorrect.”