Starting flow past an airfoil and its acquired lift in a superfluid

Musser, Seth, Proment, Davide ORCID: https://orcid.org/0000-0002-9472-0097, Onorato, Miguel and Irvine, William T. M. (2019) Starting flow past an airfoil and its acquired lift in a superfluid. Physical Review Letters, 123 (15). ISSN 0031-9007

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Abstract

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.

Item Type:	Article
Additional Information:	Early Title: Flying in a superfluid: starting flow past an airfoil
Uncontrolled Keywords:	physics - fluid dynamics,condensed matter - quantum gases,physics - computational physics
Faculty \ School:	Faculty of Science > School of Mathematics
UEA Research Groups:	Faculty of Science > Research Groups > Quantum Fluids Faculty of Science > Research Groups > Centre for Photonics and Quantum Science
Depositing User:	LivePure Connector
Date Deposited:	24 Sep 2019 08:30
Last Modified:	09 Feb 2023 13:46
URI:	https://ueaeprints.uea.ac.uk/id/eprint/72350
DOI:	10.1103/PhysRevLett.123.154502

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