4.7 Article

Hollow vortex in a corner

期刊

JOURNAL OF FLUID MECHANICS
卷 908, 期 -, 页码 -

出版社

CAMBRIDGE UNIV PRESS
DOI: 10.1017/jfm.2020.966

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vortex dynamics

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  1. NSF [DMS-1743920, DMS-1522675, CBET-1706934]
  2. Department of Mathematics at the University of California, Irvine

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Equilibrium solutions for hollow vortices in straining flow in a corner are obtained by solving a free-boundary problem. The solutions depend on the corner angle and on the non-dimensional ratio of strain to circulation, resulting in a two-parameter family of solutions.
Equilibrium solutions for hollow vortices in straining flow in a corner are obtained by solving a free-boundary problem. Conformal maps from a canonical doubly connected annular domain to the physical plane combining the Schottky-Klein prime function with an appropriate algebraic map lead to a problem similar to Pocklington's propagating hollow dipole. The result is a two-parameter family of solutions depending on the corner angle and on the non-dimensional ratio of strain to circulation.

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