Weak mean turbulent flow of dilute polymer solution

Alexander Liberzon, Michèle Guala, Wolfgang Kinzelbach, Beat Lüthi, Arkady Tsinober

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present an experimental, comparative study of the turbulent quantities of a weak mean turbulent flow in water and in a dilute polymer solution with an emphasis on phenomena at small scales. The experiment is performed by using a three-dimensional particle tracking velocimetry (3D-PTV) system. 3D-PTV allows to measure in a Lagrangian manner fields of velocity and velocity derivatives. An interpolation to the Eulerean grid allows to analyze properties of the mean flow and of the fluctuating velocity field, in addition to the small scale quantities such as vorticity, strain and their production terms. The comparison between the experimental results of the water and dilute polymer solution flows provides a direct observation of the influence of polymers on the mean, fluctuating and small scale properties.

Original languageEnglish (US)
Title of host publication4th International Symposium on Turbulence and Shear Flow Phenomena
Pages671-675
Number of pages5
Volume2
StatePublished - Dec 1 2005
Event4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4 - Williamsburg, VA, United States
Duration: Jun 27 2005Jun 29 2005

Other

Other4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4
CountryUnited States
CityWilliamsburg, VA
Period6/27/056/29/05

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