摘要
Asecond-ordermomenttwo-phaseturbulencemodelforsimulatingdensegas-particleflows(USM-Θmodel),combiningtheunifiedsecond-ordermomenttwophaseturbulencemodelfordilutegas-particleflowswiththekinetictheoryofparticlecollision,isproposed.Theinteractionbetweengasandparticleturbulenceissimulatedusingthetransportequationoftwo-phasevelocitycorrelationwithatwo-time-scaledissipationclosure.Theproposedmodelisappliedtosimulatedensegas-particleflowsinahorizontalchannelandadowner.Simulationresultsandtheircomparisonwithexperimentalresultsshowthatthemodelaccountingforbothanisotropicparticleturbulenceandparticle-particlecollisionisobviouslybetterthanmodelsaccountingforonlyparticleturbulenceoronlyparticle-particlecollision.TheUSM-Θmodelisalsobetterthanthek-ε-kp-Θmodelandthek-ε-kp-εp-ΘmodelinthatthefirstmodelcansimulatetheredistributionofanisotropicparticleReynoldsstresscomponentsduetointer-particlecollision,whereasthesecondandthirdmodelscannot.
出版日期
2005年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
