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  Effects of Polymer Additive on Turbulent Bulk Flow: The Polymer Concentration Dependence

Xi, H., Xu, H., & Bodenschatz, E. (2014). Effects of Polymer Additive on Turbulent Bulk Flow: The Polymer Concentration Dependence. In Fluid-Structure-Sound Interactions and Control (pp. 57-62). Berlin, Heidelberg: Springer Berlin Heidelberg.

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 Creators:
Xi, Hengdong1, Author           
Xu, Haitao1, Author           
Bodenschatz, Eberhard1, Author                 
Affiliations:
1Laboratory for Fluid Dynamics, Pattern Formation and Biocomplexity, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063287              

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 Abstract: We report an experimental study of the effects of polymer additives on the turbulent bulk flow. Our results confirm that both the acceleration fluctuation a and the velocity fluctuation u of the flow are suppressed when the polymer additives are present and the suppression effect on a is much stronger. We further found that polymer additives enhance the anisotropy of the flow at small scales, but do not affect the anisotropy at large scale very much. These results are qualitatively in agreement with a recent theory which predicts that only scales smaller than a critical scale are affected by the polymer additives.

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Language(s): eng - English
 Dates: 2014-01
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 691317
DOI: 10.1007/978-3-642-40371-2_7
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Title: 2nd Symposium on Fluid-Structure-Sound Interactions and Control
Place of Event: Hong Kong
Start-/End Date: 2014-05-20 - 2014-05-21

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Title: Fluid-Structure-Sound Interactions and Control
Source Genre: Proceedings
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Publ. Info: Berlin, Heidelberg : Springer Berlin Heidelberg
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 57 - 62 Identifier: ISBN: 978-3-642-40370-5