4.7 Review

Vortex Reconnection and Turbulence Cascade

Journal

ANNUAL REVIEW OF FLUID MECHANICS
Volume 54, Issue -, Pages 317-347

Publisher

ANNUAL REVIEWS
DOI: 10.1146/annurev-fluid-030121-125143

Keywords

vortex reconnection; turbulence cascade; finite-time singularity; helicity dynamics; aeroacoustic noise

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Reconnection, as a fundamental topology-transforming event, plays a significant role in the dynamics of plasmas, polymers, DNA, and fluids, including both classical viscous and quantum systems. Recent studies have made substantial advances in understanding vortex reconnection in classical viscous flows, including the physical mechanism, its relationship to turbulence cascade, the formation of a finite-time singularity, helicity dynamics, and aeroacoustic noise generation.
As a fundamental topology-transforming event, reconnection plays a significant role in the dynamics of plasmas, polymers, DNA, and fluids-both (classical) viscous and quantum. Since the 1994 review by Kida & Takaoka, substantial advances have been made on this topic. We review recent studies of vortex reconnection in (classical) viscous flows, including the physical mechanism, its relationship to turbulence cascade, the formation of a finite-time singularity, helicity dynamics, and aeroacoustic noise generation.

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