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Volume 35 Issue 12
Dec.  2009
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Journal of Beijing University of Aeronautics and Astronautics  > 2009  >  35(12): 1417-1420.
Hou Yunyi, Jing Qianfeng, Ma Guangfuet al. Orbital rendezvous control method for berthing and tracking approach[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(8): 1124-1128. (in Chinese)
Citation: Zhang Jinbai, Zheng Zhaohu. Direct numerical simulation of turbulent channel flow of polymer solution[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(12): 1417-1420. (in Chinese)
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Direct numerical simulation of turbulent channel flow of polymer solution

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 05 Dec 2008
  • Publish Date: 31 Dec 2009
    Abstract
  • The drag reduction characteristic of polymer turbulence in channel flows was investigated using the direct numerical simulation (DNS). In the simulations, the spectral methods employing Fourier series and Chebyshev polynomial were used to make the spatial discretization and the time-splitting method with second-order time accuracy was adopted to carry out time advancement. For three-dimension turbulent channel flows of a polymer solution, based on the FENE-P model, the obtained efficiency of drag reduction for the four cases show that there exists the "onset" phenomena. Based on the O-B model, the simulations show that in low drag reduction, the effect of polymer on turbulence mainly occurs in the near wall region, and in high drag reduction, the effect of polymer on turbulence occurs in the whole flowfield.

     

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    • References(1)
  • [1] Virk P S,Baher H.The effect of polymer concentration on drag reduction[J].Chem Eng Sci,1970,25(7):1183-1189  [2] Lumley J L.Drag reduction by additives[J].Annu Rev Fluid Mech,1969,1:367-384  [3] De Gennes P G.Introduction to polymer dynamics[M].Cambridge University Press,1990:34-51  [4] Sureshkumar R,Beris A N,Handler R A.Direct numerical simulation of the turbulent channel flow of a polymer solution[J].Phys Fluids,1997,9:743-754  [5] Housiadas K D,Beris A N.Polymer-induced drag reduction:effects of the variations in elasticity and inertia in turbulent viscoelastic channel flow[J].Phys Fluids,2003,15(8):743-754  [6] Kamiadakis G E,Israeli M,Orsag S A.High order splitting methods for the imcompresible Navier-Stockes equation[J].J Com Phys,1991,97(2):414-443  [7] Min T,Yoo J Y,Choi H,et al.Drag reduction by polymer additives in a turbulent channel flow[J].J Fluid Mech 2003,486:213-238
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