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Starting Flow Past an Airfoil and its Acquired Lift in a Superfluid.

08:00 EDT 11th October 2019 | BioPortfolio

Summary of "Starting Flow Past an Airfoil and its Acquired Lift in a Superfluid."

We investigate superfluid flow around an airfoil accelerated to a finite velocity from rest. Using simulations of the Gross-Pitaevskii equation we find striking similarities to viscous flows: from production of starting vortices to convergence of airfoil circulation onto a quantized version of the Kutta-Joukowski circulation. We predict the number of quantized vortices nucleated by a given foil via a phenomenological argument. We further find stall-like behavior governed by airfoil speed, not angle of attack, as in classical flows. Finally we analyze the lift and drag acting on the airfoil.

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This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 154502

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