齿墩长度对齿墩状内消能工水力特性影响的数值模拟

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1、万方数据太原理工大学硕士研究生学位论文effectontheheadlosscoefficient，butincontrast，whentheT1=0．5，thesmallestheadlosscoefficient，thelowestenergydissipation；When11=0．1，headlosscoefficientisthelargest，thehighestenergydissipation．3．WhentheT1mustbetoothpiershapewithinthedissipationofwaterfl

2、owwiththepipeincreases．4．Underthesameflowrate，alongwiththeincreaseof11，firstthedissipationisreduced，theflowrate，thegreaterthereductionofenergydissipation，thegreaterthewhenT1increasesto0．5，thedissipationreachestheminimumvalue，withT1continuestoincrease，theenergydissipa

3、tionandrise，graduallystabilized．5．Differentpierlengthoftoothpiershapewithinthewallwhentheflowofthepressurecoefficientisbroadlyinlinewithachangerulealongthepath，andarerelativelystablebeforedentalsegment，plummetedindentalimportplace，atthepiersegmenttoothremainslowdecli

4、ne，theminimumvalueintheexportofdentallocation，andthengraduallyincreaseafterdentalsegment，untilthereturntoastablestate．6．Theshapeoftoothprofileofpressureonthepiershapeclouddistributionbroadly，thewaterpressureinthewaterwhenenteringadentalsegmentdisorder，rightinfrontofd

5、entalrectangularareanearthesidewallishigh，andinthedentalinletflowpressuresharplydecreases，andthepressureminimumpointsfromdentalsegmentnowimportO．1D，uniformpressuredistributioninthedentalinterval，attheedgeofthetoothbehindthepierisnearthewallrectangularareaexistslowpre

6、ssurearea，thewholecalculationdomaindoesnotappearnegativepressure，thepressurecharacteristics，goodfollowdentaltubelengthaftercontinuetoincrease，pressureandgraduallyrecoveredhisuniform．7．Velocitydistributionappearedinfrontofthedentalwatershrinkagearea，streamlineappearan

7、cestrongbendingdeformation，velocitywerequickly，significantlyreducedpressure，flowrateincreasessignificantly，leadtotheIV万方数据太原理工大学硕士研究生学位论文energyconsumption．Afterenteringdentalsegment，streamlinebecomedense，numericalincrease，thenenterthesuddenenlargementsection，theveloc

8、ityattheedgeofthetoothbehindthepierisnearthewalloftherectangularareaandthecentralpartofthepipelineoftheseparationzoneandbackflowzon