On the link between experimentally-measured turbulence quantities and polymer-induced drag reduction in pipe flows

被引:9
|
作者
Voulgaropoulos, Victor [1 ]
Zadrazil, Ivan [1 ]
Le Brun, Niccolo [1 ]
Bismarck, Alexander [1 ,2 ]
Markides, Christos N. [1 ]
机构
[1] Imperial Coll London, Dept Chem Engn, South Kensington Campus, London SW7 2AZ, England
[2] Univ Vienna, Fac Chem, Inst Mat Chem & Res, Vienna, Austria
关键词
drag reduction; laser diagnostics; particle image velocimetry; polymers; turbulent flows; LASER-INDUCED FLUORESCENCE; PARTICLE-IMAGE VELOCIMETRY; WATER-SOLUBLE COPOLYMERS; LIQUID-LIQUID FLOWS; BOUNDARY-LAYER; ACRYLAMIDE COPOLYMERS; MOLECULAR-STRUCTURE; REDUCING POLYMERS; ADDITIVES; STATISTICS;
D O I
10.1002/aic.16662
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this study, we investigate the hydrodynamics of polymer-induced drag reduction (DR) in horizontal turbulent pipe flows. We provide spatiotemporally resolved information of velocity and its gradients obtained with particle image velocimetry measurements in solutions of water with dissolved polyethylene oxide of three different molecular weights (MWs), at various dilute concentrations and with flow Reynolds numbers from 35,000 to 210,000. We find that the local magnitudes of important turbulent flow variables correlate with the measured levels of DR irrespective of the flow Reynolds number, polymer weight, and concentration. Contour maps illustrate the spatial characteristics of this correlation. A relationship between the DR and the turbulent flow variables is found. The effects of the polymer MW, its concentration, and the Reynolds number on the flow are further examined through joint probability distributions of the fluctuations of the streamwise and spanwise velocity components.
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页数:13
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共 30 条
  • [1] Polymer-induced drag reduction in turbulent flows
    Thirumalai, D
    Bhattacharjee, JK
    [J]. PHYSICAL REVIEW E, 1996, 53 (01): : 546 - 551
  • [2] POLYMER-INDUCED DRAG REDUCTION IN TURBULENT FLOWS
    THIRUMALAI, D
    BHATTACHARJEE, JK
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1994, 208 : 103 - PMSE
  • [3] Drag reduction induced by polymer in turbulent pipe flows
    Yang, Shu-Qing
    Ding, Donghong
    [J]. CHEMICAL ENGINEERING SCIENCE, 2013, 102 : 200 - 208
  • [4] Polymer-induced turbulent drag reduction
    Choi, HJ
    Jhon, MS
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1996, 35 (09) : 2993 - 2998
  • [5] The mechanism of the polymer-induced drag reduction in blood
    Pribush, Alexander
    Hatzkelzon, Lev
    Meyerstein, Dan
    Meyerstein, Naomi
    [J]. COLLOIDS AND SURFACES B-BIOINTERFACES, 2013, 103 : 354 - 359
  • [6] Rotating disk apparatus for polymer-induced turbulent drag reduction
    Hong, Cheng Hai
    Choi, Hyoung Jin
    Kim, Jae Ho
    [J]. JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2008, 22 (10) : 1908 - 1913
  • [7] Hairpin vortex dynamics and polymer-induced turbulent drag reduction
    Kim, Kyoungyoun
    Adrian, Ronald J.
    Balachandar, S.
    Sureshkumar, R.
    [J]. XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2, 2008, 1027 : 216 - +
  • [8] Rotating disk apparatus for polymer-induced turbulent drag reduction
    Cheng Hai Hong
    Hyoung Jin Choi
    Jae Ho Kim
    [J]. Journal of Mechanical Science and Technology, 2008, 22 : 1908 - 1913
  • [9] Effect of degradation on polymer-induced turbulent drag reduction.
    Choi, HJ
    Kim, CA
    Vinay, SJ
    Jhon, MS
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2000, 219 : U382 - U382
  • [10] Dynamics of hairpin vortices and polymer-induced turbulent drag reduction
    Kim, Kyoungyoun
    Adrian, Ronald J.
    Balachandar, S.
    Sureshkumar, R.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 100 (13)