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    Discharge Assessment in Straight Open Channels with Partial Ice Cover

    Source: Journal of Cold Regions Engineering:;2019:;Volume ( 033 ):;issue: 002
    Author:
    Gang Chen; Ben Li; Shixiang Gu; Ya Zhong
    DOI: 10.1061/(ASCE)CR.1943-5495.0000182
    Publisher: American Society of Civil Engineers
    Abstract: This paper develops an analytical model for discharge assessment in straight channels with partial ice cover. The flow section of a partly covered channel was laterally divided into several homogeneous subsections, which were further classified into six basic elements according to the solid boundary conditions. In each basic element, the momentum balance, which accounts for momentum exchange between the adjacent subsections, was analyzed. Then, a linear system with a tridiagonal coefficient matrix was presented to estimate discharge in the partly covered channel. Experimental data collected from the literature were used to examine the performance of the proposed method and compare its accuracy with traditional methods for discharge assessment in composite or compound channels. The comparative results indicated that the proposed method produces satisfactory predictions, and the traditional methods were shown to be inappropriate for stage-discharge predictions in partly covered channels. In addition, the main parameters presented in the proposed model were discussed.
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      Discharge Assessment in Straight Open Channels with Partial Ice Cover

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    contributor authorGang Chen; Ben Li; Shixiang Gu; Ya Zhong
    date accessioned2019-03-10T12:03:16Z
    date available2019-03-10T12:03:16Z
    date issued2019
    identifier other%28ASCE%29CR.1943-5495.0000182.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4254757
    description abstractThis paper develops an analytical model for discharge assessment in straight channels with partial ice cover. The flow section of a partly covered channel was laterally divided into several homogeneous subsections, which were further classified into six basic elements according to the solid boundary conditions. In each basic element, the momentum balance, which accounts for momentum exchange between the adjacent subsections, was analyzed. Then, a linear system with a tridiagonal coefficient matrix was presented to estimate discharge in the partly covered channel. Experimental data collected from the literature were used to examine the performance of the proposed method and compare its accuracy with traditional methods for discharge assessment in composite or compound channels. The comparative results indicated that the proposed method produces satisfactory predictions, and the traditional methods were shown to be inappropriate for stage-discharge predictions in partly covered channels. In addition, the main parameters presented in the proposed model were discussed.
    publisherAmerican Society of Civil Engineers
    titleDischarge Assessment in Straight Open Channels with Partial Ice Cover
    typeJournal Paper
    journal volume33
    journal issue2
    journal titleJournal of Cold Regions Engineering
    identifier doi10.1061/(ASCE)CR.1943-5495.0000182
    page04019002
    treeJournal of Cold Regions Engineering:;2019:;Volume ( 033 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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