Page 146 - 《水资源与水工程学报》2023年第2期
P. 146

!34 " ! 2 #                       & ' ( ) & * + , -                               Vol.34No.2
               2023 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2023

            DOI:10.11705/j.issn.1672-643X.2023.02.18


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                 GHIJK:TV653 .1;TV135.2   LMNOP:A    LQRK:1672643X(2023)02014207
                   Numericalsimulationofhydrauliccharacteristicsofpier-fencejoint

                                   dissipatorsinunderflowdissipationbasins

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                                ZHOUKai ,MUZhenwei ,ZHOUZhen ,ZHAOQian
                 (1.CollegeofHydraulicandCivilEngineering,XinjiangAgriculturalUniversity,Urumqi830052,China;2.XinjiangKey
                         LaboratoryofHydraulicEngineeringSafetyandWaterDisasterPrevention ,Urumqi830052,China)
                 Abstract:Toaddresstheproblemsofinsufficientenergydissipation,turbulentflowpatternsandunstable
                 damagecausedbyexcessivedynamicwaterpressureonthebottomplateofunderflowdissipationbasins
                 withlowFroudenumber,theconventionaldissipationpoolswereequippedwithjointauxiliaryenergydis
                 sipatorssuchastoepier-suspendedfence,dissipationpier-suspendedfence,Tshapedpier-suspen
                 dedfence ,thenthehydrauliccharacteristicsandenergydissipationlawofeachjointauxiliaryenergydis
                 sipatorwasanalyzedusingnumericalsimulationmethod.Theresultsshowthatafterthearrangementof
                 thejointauxiliaryenergydissipatorsinthedissipationbasin ,thewatersurfaceflowpatterntendstobe
                 smoothercomparedwiththeconventionaldissipationbasin,themaximum hourlymeandynamicwater
                 pressureonthebottomplateoftheunderflowdissipationbasinisdecreasedby50%,25% and12.5%,
                 andtheenergydissipationrateisincreasedby3.13%,6.06% and5.24%,respectively;compared
                 withthesamepiertypedissipationbasin (withoutsuspendedfence),themaximumhourlymeandynamic
                 waterpressureonthebottomplateofthedissipationbasinisreducedby20%,25% and12.5%,and
                 theenergydissipationrateisincreasedby0.17%,3.05% and0.39%,respectively.Itisconcluded
                 thatthecombineduseofauxiliaryenergydissipaorsoftoepiers ,dissipationpiers,Tshapedpiersand
                 suspendedfencehasasuperpositionofadvantages ,andthestudycanprovideanewwayofthinkingfor

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