International Journal of Economy, Energy and Environment

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Flow Pattern and Hydraulic Parameter Characteristics of the Different Topographic Position in the Small Catchment

Received: Jul. 02, 2019    Accepted:     Published: Aug. 27, 2019
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Abstract

Flow pattern and hydraulic parameter characteristics of the different topographic position in the “slope-gully-basin” system under the rainfall intensities of 60, 90 and 120 mm/h using generalized small watershed model with the simulated rainfall experiment. The results show that the increase of the rainfall intensity will result in the increase of the Reynolds number. During the whole experiment, only when the rainfall intensity is 60 mm/h, the flow pattern of the hilly-slope is laminar flow. The flow patterns of the other geomorphic position are all turbulent flow. Moreover, the Reynolds number of slope flow is much less than that of channel flow. With the increase of rainfall intensity, flow patterns of the all different geomorphic position changed from the stratum flow into torrent flow. Furthermore, the Froude number increases first and then decreases with the increase of rainfall intensity. For the resistance coefficient of the overland flow, with the increase of rainfall intensity, the resistance coefficient of overland flow and channel flow decreases obviously. For the spatial distribution of resistance coefficient, the maximum occurs at the hilly-slope and the minimum at the channel.

DOI 10.11648/j.ijeee.20190404.13
Published in International Journal of Economy, Energy and Environment ( Volume 4, Issue 4, August 2019 )
Page(s) 80-87
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Topographic Position, Flow Pattern, Hydraulic Parameter, Simulated Rainfall, Generalized Small Watershed Model

References
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Cite This Article
  • APA Style

    Wang Lingling, Zuo Zhongguo, Lou Xuan, Huang Jing, Hou Xinxin. (2019). Flow Pattern and Hydraulic Parameter Characteristics of the Different Topographic Position in the Small Catchment. International Journal of Economy, Energy and Environment, 4(4), 80-87. https://doi.org/10.11648/j.ijeee.20190404.13

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    ACS Style

    Wang Lingling; Zuo Zhongguo; Lou Xuan; Huang Jing; Hou Xinxin. Flow Pattern and Hydraulic Parameter Characteristics of the Different Topographic Position in the Small Catchment. Int. J. Econ. Energy Environ. 2019, 4(4), 80-87. doi: 10.11648/j.ijeee.20190404.13

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    AMA Style

    Wang Lingling, Zuo Zhongguo, Lou Xuan, Huang Jing, Hou Xinxin. Flow Pattern and Hydraulic Parameter Characteristics of the Different Topographic Position in the Small Catchment. Int J Econ Energy Environ. 2019;4(4):80-87. doi: 10.11648/j.ijeee.20190404.13

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  • @article{10.11648/j.ijeee.20190404.13,
      author = {Wang Lingling and Zuo Zhongguo and Lou Xuan and Huang Jing and Hou Xinxin},
      title = {Flow Pattern and Hydraulic Parameter Characteristics of the Different Topographic Position in the Small Catchment},
      journal = {International Journal of Economy, Energy and Environment},
      volume = {4},
      number = {4},
      pages = {80-87},
      doi = {10.11648/j.ijeee.20190404.13},
      url = {https://doi.org/10.11648/j.ijeee.20190404.13},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijeee.20190404.13},
      abstract = {Flow pattern and hydraulic parameter characteristics of the different topographic position in the “slope-gully-basin” system under the rainfall intensities of 60, 90 and 120 mm/h using generalized small watershed model with the simulated rainfall experiment. The results show that the increase of the rainfall intensity will result in the increase of the Reynolds number. During the whole experiment, only when the rainfall intensity is 60 mm/h, the flow pattern of the hilly-slope is laminar flow. The flow patterns of the other geomorphic position are all turbulent flow. Moreover, the Reynolds number of slope flow is much less than that of channel flow. With the increase of rainfall intensity, flow patterns of the all different geomorphic position changed from the stratum flow into torrent flow. Furthermore, the Froude number increases first and then decreases with the increase of rainfall intensity. For the resistance coefficient of the overland flow, with the increase of rainfall intensity, the resistance coefficient of overland flow and channel flow decreases obviously. For the spatial distribution of resistance coefficient, the maximum occurs at the hilly-slope and the minimum at the channel.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Flow Pattern and Hydraulic Parameter Characteristics of the Different Topographic Position in the Small Catchment
    AU  - Wang Lingling
    AU  - Zuo Zhongguo
    AU  - Lou Xuan
    AU  - Huang Jing
    AU  - Hou Xinxin
    Y1  - 2019/08/27
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ijeee.20190404.13
    DO  - 10.11648/j.ijeee.20190404.13
    T2  - International Journal of Economy, Energy and Environment
    JF  - International Journal of Economy, Energy and Environment
    JO  - International Journal of Economy, Energy and Environment
    SP  - 80
    EP  - 87
    PB  - Science Publishing Group
    SN  - 2575-5021
    UR  - https://doi.org/10.11648/j.ijeee.20190404.13
    AB  - Flow pattern and hydraulic parameter characteristics of the different topographic position in the “slope-gully-basin” system under the rainfall intensities of 60, 90 and 120 mm/h using generalized small watershed model with the simulated rainfall experiment. The results show that the increase of the rainfall intensity will result in the increase of the Reynolds number. During the whole experiment, only when the rainfall intensity is 60 mm/h, the flow pattern of the hilly-slope is laminar flow. The flow patterns of the other geomorphic position are all turbulent flow. Moreover, the Reynolds number of slope flow is much less than that of channel flow. With the increase of rainfall intensity, flow patterns of the all different geomorphic position changed from the stratum flow into torrent flow. Furthermore, the Froude number increases first and then decreases with the increase of rainfall intensity. For the resistance coefficient of the overland flow, with the increase of rainfall intensity, the resistance coefficient of overland flow and channel flow decreases obviously. For the spatial distribution of resistance coefficient, the maximum occurs at the hilly-slope and the minimum at the channel.
    VL  - 4
    IS  - 4
    ER  - 

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Author Information
  • Yellow River Institute of Hydraulic Research, Key Laboratory of the Loess Plateau Soil Erosion and Water Loss Process and Control of Ministry of Water Resources, Zhengzhou, China

  • Yellow River Institute of Hydraulic Research, Key Laboratory of the Loess Plateau Soil Erosion and Water Loss Process and Control of Ministry of Water Resources, Zhengzhou, China

  • Yellow River Institute of Hydraulic Research, Key Laboratory of the Loess Plateau Soil Erosion and Water Loss Process and Control of Ministry of Water Resources, Zhengzhou, China

  • Yellow River Institute of Hydraulic Research, Key Laboratory of the Loess Plateau Soil Erosion and Water Loss Process and Control of Ministry of Water Resources, Zhengzhou, China

  • Yellow River Institute of Hydraulic Research, Key Laboratory of the Loess Plateau Soil Erosion and Water Loss Process and Control of Ministry of Water Resources, Zhengzhou, China

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