In the present study, the turbulence behaviour of polymer solutions is investigated using laser-Doppler velocimetry (LDV). At the same time, an attempt is made to determine a possibly occurring extension and orientation of the macromolecules by flow-induced birefringence (FIB). Flow-dynamic and rheo-optical experiments are presented which were performed in a smooth square channel in the area of the fully developed turbulent flow. The turbulent flow properties of aqueous solutions of PAAM and Xanthan Gum were studied. The Reynolds number was 30000. The concentration of the polymer solutions was varied between 300 wppm and 800 wppm for PR2300 and between 30 wppm and 120 wppm in the case of Xanthan Gum. The obtained experimental data indicate a significant dependence of the turbulent flow properties on the molecular structure of the polymers used. Furthermore, the extension and orientation of the macromolecules on the turbulent flow properties was investigated.
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ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3697-5
PROCEEDINGS PAPER
Some Experimental Results on Laser Doppler Velocimetry (LDV) and Birefringence (FIB) Studies of Non-Newtonian Fluids Flow Through Rectangular Channels Available to Purchase
Bernhard Gampert,
Bernhard Gampert
University of Essen, Essen, Germany
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Thomas Braemer,
Thomas Braemer
University of Essen, Essen, Germany
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Thomas Eich,
Thomas Eich
University of Essen, Essen, Germany
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Torsten Dietmann
Torsten Dietmann
University of Essen, Essen, Germany
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Bernhard Gampert
University of Essen, Essen, Germany
Thomas Braemer
University of Essen, Essen, Germany
Thomas Eich
University of Essen, Essen, Germany
Torsten Dietmann
University of Essen, Essen, Germany
Paper No:
FEDSM2003-45447, pp. 1471-1476; 6 pages
Published Online:
February 4, 2009
Citation
Gampert, B, Braemer, T, Eich, T, & Dietmann, T. "Some Experimental Results on Laser Doppler Velocimetry (LDV) and Birefringence (FIB) Studies of Non-Newtonian Fluids Flow Through Rectangular Channels." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 1471-1476. ASME. https://doi.org/10.1115/FEDSM2003-45447
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