What is it about?
We have studied how a very small bubble moves through a model vortex, called a Lamb-Oseen vortex. This allows us to examine the underlying physics of how bubbles can be trapped in a vortex, how long they are trapped, and other unique features of their trajectories.
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Why is it important?
Particle tracking in turbulence is widely applicable, and our goal was to use a simplified model to easily sift through data and determine some important features of bubble entrapment in a vortex, such as residence time of the bubble and trapping potential of a vortex. Our results may be applied to much more complicated flows which involve vortices (such as wall-bounded turbulence) with appropriate scaling.
Read the Original
This page is a summary of: The nature of bubble entrapment in a Lamb–Oseen vortex, Physics of Fluids, June 2021, American Institute of Physics, DOI: 10.1063/5.0053658.
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