Page 148 - 《水资源与水工程学报》2022年第2期
P. 148
!33 " ! 2 # & ' ( ) & * + , - Vol.33No.2
2022 $ 4 % JournalofWaterResources&WaterEngineering Apr.,2022
DOI:10.11705/j.issn.1672-643X.2022.02.19
îï&'(ý&)*&+,5çST
1¶·, ¸¹, zº, » f, ¼½½
( ¯®=(ä3% U/g¾za%j, ¯ Jý 712100)
C D: TV2v<ÒuÞäkmqÒ®F¹pA Të, + FLOW -3DM, þ TruVOFq RNGk-ε
?R¿Av<ÒuÞäpmqÒ®Fm~¹ì, BC4FÄuÞä^pAøgÑTë, à
èì;Y³GpUÎ、 r¿OÜg1k ¡mk。 ¡¢£: ¹ìg1k
¡+ç9; uÞä+5ÐWAøhºm¿¢, BÒ®<AøK3, eôõÒ®Fpn3, ±3+AøpS
BÒ®<¿f; ôõÒ®Fpn3, Ò®<pG|åLëéÑ, eѹÅ{îpD3, Ѽ
¢H; uÞä^ÑpÜÄ¿G|kÑz, lS¥¦§|“ È&ÒÅ3” phº)µ。
EFG: v<ÒuÞä; Ò®F; UÞTë; Ñ; ¹ì
HIAJK:TV135.2 LMNOP:A LQRK:1672643X(2022)02014408
Hydrauliccharacteristicsofunilateraldivergentstillingbasin
underdifferentdiffusionangles
DUZhenkang,YINJinbu,ZHUGuangming,HEHong,YANXiuxiu
(CollegeofWaterResourcesandArchitecturalEngineering,NorthwestA&FUniversity,Yangling712100,China)
Abstract:Inordertostudythehydrauliccharacteristicsofunilaterallydivergentstillingbasinsunderdif
ferentdiffusionangles,anumericalsimulationwascarriedoutusingtheTruVOFmethodandtheRNG
k-ε turbulencemodelbasedonFLOW -3D.Thecharacteristicsofthevelocityandvortexwasinvesti
gatedasthefocusofthestudy,andthecalculationresultsofthesurfaceline,timeaveragedpressure
werecomparedwiththoseofthephysicalmodeltest.Thecomparisonresultsshowthatthenumericalsim
ulationresultsarebasicallyconsistentwiththoseobtainedbymodeltest.Onthisbasis ,anindepthstudy
foundthatthevelocityonthebottomofthestillingbasinisunevenlydistributed,withalargervelocityon
thenondiffusionside.Withtheincreaseofthediffusionangle ,themaximumnearbottomvelocitygradu
allymovedtothenondiffusionside.Averticalvortexformedonthediffusionsideandgraduallyreached
theslabofthestillingbasinwiththeincreaseofthediffusionangle ,andthescaleofthevortexkeptin
creasingwithastableposition.Thestrongvortexsegmentappearedinthemiddleofthevortexandpres
entedtheregularitiesofdistributionofsmallatbothendsandlargeinthemiddlealongtheaxialdirec
tion.
Keywords:unilateraldivergentstillingbasin;diffusionangle;hydrauliccharacteristics;vortex;numer
icalsimulation
"#$ [4] 。uÞäzU/aYZpuI
1 ./01
-á, gh9zpuÞä¦, *33uI,
U/a¡p¤çÑuI#$za (çº×øUA8äp¾À。ÂpuÞäñò
-;hHÒç{ßàpäå#$ [1-3] , I¡ uÞäpÜzDâhT"Ü©LuÞä、 Ò
»m_éG¹p¹â、 M,Ãw i"¢ uÞäwÔÒuÞä。"Ü©LuÞä, ö^
!"#$:20211025; %$:20220108
+,-.: ùÙñ(1996-), ], ~®¯O, uQ4FG, (vaUÞ%4F。
/0+,: èmC(1968-), ], ¯
$O, y4F, (vaUÞ%4F。