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    Three-Dimensional Numerical Modeling of Urban Green Stormwater Infrastructure Curb Inlets

    Source: Journal of Irrigation and Drainage Engineering:;2021:;Volume ( 147 ):;issue: 009::page 04021039-1
    Author:
    Richard Ampomah
    ,
    Hossein Hosseiny
    ,
    Sarah Stoolmiller
    ,
    Madhat Fares
    ,
    Virginia Smith
    ,
    Bridget Wadzuk
    DOI: 10.1061/(ASCE)IR.1943-4774.0001589
    Publisher: ASCE
    Abstract: The current equations for curb inlet opening sizing often inaccurately estimate the capture efficiency of small urban green stormwater infrastructure (GSI) curb inlets. Most of these equations are based on studies with openings much larger than typical urban GSI curb inlets (i.e., less than 0.6 m). This study introduces a new, three-dimensional (3D) numerical approach for evaluating curb efficiency using the ANSYS Fluent computational fluid dynamics (CFD) model that can be applied to a wide range of curb inlet conditions. Simulated curb efficiency results for typical urban curb inlet openings are verified by laboratory experiments of field-scale conditions. A high prediction accuracy is obtained (Nash-Sutcliffe efficiency coefficient=0.97) between the observed and the CFD model results. The CFD model also performs better than three commonly used methods for estimating curb inlet efficiency; the Hydraulic Engineering Circular No. 22, and the 2009 and 2012 Comport and Thornton equations. The high level of accuracy observed in this study makes 3D CFD modeling a more effective alternative to existing equations for evaluating GSI curb inlet efficiency. The quick simulation times realized in this study also demonstrate that CFD modeling of GSI inlets has an added benefit of quickly evaluating several design alternatives without a need for costly full-scale or on-site testing often performed to assess such inlets.
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      Three-Dimensional Numerical Modeling of Urban Green Stormwater Infrastructure Curb Inlets

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4272385
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    • Journal of Irrigation and Drainage Engineering

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    contributor authorRichard Ampomah
    contributor authorHossein Hosseiny
    contributor authorSarah Stoolmiller
    contributor authorMadhat Fares
    contributor authorVirginia Smith
    contributor authorBridget Wadzuk
    date accessioned2022-02-01T21:58:08Z
    date available2022-02-01T21:58:08Z
    date issued9/1/2021
    identifier other%28ASCE%29IR.1943-4774.0001589.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4272385
    description abstractThe current equations for curb inlet opening sizing often inaccurately estimate the capture efficiency of small urban green stormwater infrastructure (GSI) curb inlets. Most of these equations are based on studies with openings much larger than typical urban GSI curb inlets (i.e., less than 0.6 m). This study introduces a new, three-dimensional (3D) numerical approach for evaluating curb efficiency using the ANSYS Fluent computational fluid dynamics (CFD) model that can be applied to a wide range of curb inlet conditions. Simulated curb efficiency results for typical urban curb inlet openings are verified by laboratory experiments of field-scale conditions. A high prediction accuracy is obtained (Nash-Sutcliffe efficiency coefficient=0.97) between the observed and the CFD model results. The CFD model also performs better than three commonly used methods for estimating curb inlet efficiency; the Hydraulic Engineering Circular No. 22, and the 2009 and 2012 Comport and Thornton equations. The high level of accuracy observed in this study makes 3D CFD modeling a more effective alternative to existing equations for evaluating GSI curb inlet efficiency. The quick simulation times realized in this study also demonstrate that CFD modeling of GSI inlets has an added benefit of quickly evaluating several design alternatives without a need for costly full-scale or on-site testing often performed to assess such inlets.
    publisherASCE
    titleThree-Dimensional Numerical Modeling of Urban Green Stormwater Infrastructure Curb Inlets
    typeJournal Paper
    journal volume147
    journal issue9
    journal titleJournal of Irrigation and Drainage Engineering
    identifier doi10.1061/(ASCE)IR.1943-4774.0001589
    journal fristpage04021039-1
    journal lastpage04021039-8
    page8
    treeJournal of Irrigation and Drainage Engineering:;2021:;Volume ( 147 ):;issue: 009
    contenttypeFulltext
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