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    Analytic Benchmark Solutions for Open-Channel Flows

    Source: Journal of Hydraulic Engineering:;1997:;Volume ( 123 ):;issue: 011
    Author:
    I. MacDonald
    ,
    M. J. Baines
    ,
    N. K. Nichols
    ,
    P. G. Samuels
    DOI: 10.1061/(ASCE)0733-9429(1997)123:11(1041)
    Publisher: American Society of Civil Engineers
    Abstract: An important test of the quality of a computational model is its ability to reproduce standard test cases or benchmarks. For steady open–channel flow based on the Saint Venant equations some benchmarks exist for simple geometries from the work of Bresse, Bakhmeteff and Chow but these are tabulated in the form of standard integrals. This paper provides benchmark solutions for a wider range of cases, which may have a nonprismatic cross section, nonuniform bed slope, and transitions between subcritical and supercritical flow. This makes it possible to assess the underlying quality of computational algorithms in more difficult cases, including those with hydraulic jumps. Several new test cases are given in detail and the performance of a commercial steady flow package is evaluated against two of them. The test cases may also be used as benchmarks for both steady flow models and unsteady flow models in the steady limit.
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      Analytic Benchmark Solutions for Open-Channel Flows

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    http://yetl.yabesh.ir/yetl1/handle/yetl/24363
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    contributor authorI. MacDonald
    contributor authorM. J. Baines
    contributor authorN. K. Nichols
    contributor authorP. G. Samuels
    date accessioned2017-05-08T20:42:42Z
    date available2017-05-08T20:42:42Z
    date copyrightNovember 1997
    date issued1997
    identifier other%28asce%290733-9429%281997%29123%3A11%281041%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/24363
    description abstractAn important test of the quality of a computational model is its ability to reproduce standard test cases or benchmarks. For steady open–channel flow based on the Saint Venant equations some benchmarks exist for simple geometries from the work of Bresse, Bakhmeteff and Chow but these are tabulated in the form of standard integrals. This paper provides benchmark solutions for a wider range of cases, which may have a nonprismatic cross section, nonuniform bed slope, and transitions between subcritical and supercritical flow. This makes it possible to assess the underlying quality of computational algorithms in more difficult cases, including those with hydraulic jumps. Several new test cases are given in detail and the performance of a commercial steady flow package is evaluated against two of them. The test cases may also be used as benchmarks for both steady flow models and unsteady flow models in the steady limit.
    publisherAmerican Society of Civil Engineers
    titleAnalytic Benchmark Solutions for Open-Channel Flows
    typeJournal Paper
    journal volume123
    journal issue11
    journal titleJournal of Hydraulic Engineering
    identifier doi10.1061/(ASCE)0733-9429(1997)123:11(1041)
    treeJournal of Hydraulic Engineering:;1997:;Volume ( 123 ):;issue: 011
    contenttypeFulltext
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