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Volume 18 Issue 4
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HUA Zu-lin, XING Ling-hang, CHU Ke-jian. Circulation structure and mixing intensity of stratified shear flows in bends of open channel[J]. Advances in Water Science, 2007, 18(4): 531-537.
Citation: HUA Zu-lin, XING Ling-hang, CHU Ke-jian. Circulation structure and mixing intensity of stratified shear flows in bends of open channel[J]. Advances in Water Science, 2007, 18(4): 531-537.
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Circulation structure and mixing intensity of stratified shear flows in bends of open channel

  • State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environmental Science & Engineering, Hohai University, Nanjing 210098, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.50679019;50009001)
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  • Received Date: April 27, 2006
  • Revised Date: September 16, 2006
    Graphical Abstract
    • Abstract
  • The microstructure of circumfluence and the characteristic of the mixing intensity on the cross-section of thermally stratified shear flow in curved flumes are studied experimentally.By the experimental investigation of the curved flumes with three different sinuosities of 45°,90° and 180°,the transition of the circumfluent structure on the cross-section from the stable stratification to mixing is explored.The four-circulation patterns of the secondary flow are first detected at the critical condition of the conversion of the stable stratification to mixing Moreover,the differences of three-circulation patterns of the secondary flow between stable stratification and mixing are also first discovered,and the reasons of difference between two situations are investigated In addition,the change process of the mixing intensity along the curved flumes is obtained.
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    • References (15)
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