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Volume 20 Issue 2
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XIAO Pei-qing, ZHENG Fen-li, YAO Wen-yi. Flow pattern and hydraulic parameter characteristics in hillslope-gullyslope system[J]. Advances in Water Science, 2009, 20(2): 236-240.
Citation: XIAO Pei-qing, ZHENG Fen-li, YAO Wen-yi. Flow pattern and hydraulic parameter characteristics in hillslope-gullyslope system[J]. Advances in Water Science, 2009, 20(2): 236-240.
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Flow pattern and hydraulic parameter characteristics in hillslope-gullyslope system

  • 1.

    Institute of Yellow River Hydraulic Research, Key Laboratory of Yellow River Sediment Research of Ministry of Water Resources, Zhengzhou 450003, China;

  • 2.

    State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation CAS & MWR, Yangling 712100, China;

  • 3.

    College of Resources and Environment, Northwest A & F University, Yangling 712100, China

Funds: The study is financially supported by the National Basic Research Program of China (No.2007CB407201)
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  • Received Date: January 17, 2008
    Graphical Abstract
    • Abstract
  • Flow pattern and hydraulic parameter characteristics are quantified under the rainfall intensities of 60,90,and 130 mm/h using the hillslope-gullyslope system including different slope gradients with the simulated rainfall experiment.The resups show that the hillslope runoff discharging into gullyslope or the increase of the rainfall intensity will result in the increase of the Reynolds number and Froude number and the shift of flow pattern from the stratum flow into torrent flow.The hillslope runoff discharging into hillslope-gullyslope system causes the decrease of the Darcy-Weisbach coefficient and the increase of the sediment delivery at the same time.
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    • References (9)
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