Turbulence in dilute polymer solutions

A. Liberzon, M. Guala, B. Lüthi, W. Kinzelbach, A. Tsinober

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Abstract

The work reported below is a comparative study of the properties of turbulence with weak mean flow in a Newtonian fluid and in a dilute polymer solution with an emphasis on the small scale phenomena. The main tool used is a three-dimensional particle tracking system allowing to measure and follow in a Lagrangian manner the field of velocities, as well as velocity derivatives, and thus vorticity, strain, and a variety of related and dynamically significant quantities. The comparison of data from the two flows allows to directly observe the influence of polymers on these quantities as well as the evolution of material elements in the presence of polymers.

Original languageEnglish (US)
Article number031707
Pages (from-to)031707-1-031707-4
JournalPhysics of Fluids
Volume17
Issue number3
DOIs
StatePublished - Mar 2005

Bibliographical note

Funding Information:
This research was supported by ETH research fund, under Grant No. TH-18/02-4.

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