YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASCE
    • Journal of Hydraulic Engineering
    • View Item
    •   YE&T Library
    • ASCE
    • Journal of Hydraulic Engineering
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Energy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel

    Source: Journal of Hydraulic Engineering:;2020:;Volume ( 146 ):;issue: 007
    Author:
    Pu Li
    ,
    Kaiheng Hu
    ,
    Jinheng Zhao
    DOI: 10.1061/(ASCE)HY.1943-7900.0001766
    Publisher: ASCE
    Abstract: Energy of debris flows in steep mountainous channels is mostly consumed by erosion, collision, and hydraulic jumps due to abrupt topographic changes. In this study, flume experiments were performed to study the energy dissipation of debris flows over stepped gradients and erodible beds. A power law relationship between the depth-averaged velocity and flow depth was used to calculate the kinetic energy of debris flows. The experimental data indicate that the energy loss of entrainment per unit volume of bed sediment has an approximately linear relationship with transition angle and porosity. The net resistance coefficient also demonstrates more energy dissipation when debris flows move downward on slopes with a greater gradient change.
    • Download: (1.260Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Energy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4266863
    Collections
    • Journal of Hydraulic Engineering

    Show full item record

    contributor authorPu Li
    contributor authorKaiheng Hu
    contributor authorJinheng Zhao
    date accessioned2022-01-30T20:38:36Z
    date available2022-01-30T20:38:36Z
    date issued7/1/2020 12:00:00 AM
    identifier other%28ASCE%29HY.1943-7900.0001766.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4266863
    description abstractEnergy of debris flows in steep mountainous channels is mostly consumed by erosion, collision, and hydraulic jumps due to abrupt topographic changes. In this study, flume experiments were performed to study the energy dissipation of debris flows over stepped gradients and erodible beds. A power law relationship between the depth-averaged velocity and flow depth was used to calculate the kinetic energy of debris flows. The experimental data indicate that the energy loss of entrainment per unit volume of bed sediment has an approximately linear relationship with transition angle and porosity. The net resistance coefficient also demonstrates more energy dissipation when debris flows move downward on slopes with a greater gradient change.
    publisherASCE
    titleEnergy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel
    typeJournal Paper
    journal volume146
    journal issue7
    journal titleJournal of Hydraulic Engineering
    identifier doi10.1061/(ASCE)HY.1943-7900.0001766
    page10
    treeJournal of Hydraulic Engineering:;2020:;Volume ( 146 ):;issue: 007
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian