Preferential Sampling of Elastic Chains in Turbulent Flows

Preferential Sampling of Elastic Chains in Turbulent Flows

A string of tracers interacting elastically in a turbulent flow is shown to have a dramatically different behavior when compared to the noninteracting case. In particular, such an elastic chain shows strong preferential sampling of the turbulent flow unlike the usual tracer limit: An elastic chain i...

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Veröffentlicht in:Physical review letters 2018-12, Vol.121 (24), p.244501-244501, Article 244501
Hauptverfasser: Picardo, Jason R, Vincenzi, Dario, Pal, Nairita, Ray, Samriddhi Sankar
Format: Artikel
Sprache:eng
Schlagworte:
Chains
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Deformation effects
Dependence
Elastic limit
Elasticity
Fluid dynamics
Fluid mechanics
Formability
Mathematics
Mechanics
Nonlinear Sciences
Parameter modification
Physics
Sampling
Tracers
Turbulent flow
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Beschreibung
Zusammenfassung:A string of tracers interacting elastically in a turbulent flow is shown to have a dramatically different behavior when compared to the noninteracting case. In particular, such an elastic chain shows strong preferential sampling of the turbulent flow unlike the usual tracer limit: An elastic chain is trapped in the vortical regions. The degree of preferential sampling and its dependence on the elasticity of the chain is quantified via the Okubo-Weiss parameter. The effect of modifying the deformability of the chain via the number of links that form it is also examined.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.121.244501