Hydrodynamic Test on Porous Media Coupled Action of Seepage tangential Flow
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School of Civil Engineering, Tongji Univ., Shanghai,School of Civil Engineering, Tongji Univ., Shanghai,School of Civil Engineering, Tongji University,School of Civil Engineering, Tongji Univ., Shanghai

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TV131.2

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    Abstract:

    A special setup was developed to observe the coupled effects of seepage and tangential flow. Experimental hydrodynamic analysis was performed on the boundary layer of permeable beds subjected to bed normal seepage. The bed is made up of uniform sized spheres. The hydrodynamic influences of flow depth and seepage intensity on the flow structure in the pores of the permeable bed were analyzed. The results indicate that the hydrodynamic pressure and turbulence intensity in the pores are much smaller than in the tangential flow above the bed. The results also show that the seepage intensity has positive correlation with outward seepage rate from the pores. The flow turbulence intensity and hydrodynamic pressure in pores descends with the increasing of depth, and the descending rate gets down as well. The influence of different seepage conditions on transverse hydrodynamic pressure is not obvious.

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XIE Liquan, ZHU Yehui, HUANG Wenrui, ZHANG Yi. Hydrodynamic Test on Porous Media Coupled Action of Seepage tangential Flow[J].同济大学学报(自然科学版),2014,42(3):0393~0397

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History
  • Received:April 07,2013
  • Revised:November 26,2013
  • Adopted:June 14,2013
  • Online: March 10,2014
  • Published:
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