噴動(dòng)床內(nèi)氣固兩相流的數(shù)值模擬.pdf

1、河北工業(yè)大學(xué)碩士學(xué)位論文噴動(dòng)床內(nèi)氣固兩相流的數(shù)值模擬姓名：高聰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化工過程機(jī)械指導(dǎo)教師：張少峰20080401噴動(dòng)床內(nèi)氣固兩相流的數(shù)值模擬iiNumericalSimulationOfTheGasSolidTwophaseFlowInSpoutedBedsABSTRACTTheflowfieldacteristicofthegassolidtwophasefluidinspoutedbedwassimulatedde

2、tailedinfmationoftheparticlemovementwasconsidereditprovidedthetheytotheexperimentationindustrialization.Theprofileofthevelocityvectthevolumefractionoftheparticleturbulencekiicenergyindifferentspoutedbedwasobtained.Theinf

3、luenceofthedifferenttaperentrancegasvelocityfthesinglenozzlespoutedbedwasconsidered.Thesimulationresultshowedthat:Theflowfieldprofilewasperfectwhentheentrancegasvelocitywas0.58ms1thetaperwas60fthesinglenozzlespoutedbedth

4、edistinctacterofthespoutfountainannulushavebeenobtainedThespoutingstatewasstablywhentherangeoftheentranceRenoldsnumberwas3285Re13139.Theaffectionofthedifferentdiameterofthedrafttubeinthedifferentheightfthedoublenozzlespo

5、utedbedwasconsidered.Thesimulationresultshowedthat:Fthedoublenozzlespoutedbedtheflowfieldprofilewasperfectfthesamesettingheightwhentherateofthedrafttubediameterthespoutedbeddiameterwas0.3DiD0.45themodelwasideallyfthesame