高原低气压环境局部弥散供氧特性

1005-0930201602-0378-013TU831.8P463.4Adoi10.16058/j．issn．1005-0930.2016.02.0162014-10-152015-01-19FＲF-TP-15-024A3513060171989—[e-mail]1984—[e-mail]131213111．1000832．1000833．212300．0～1.5m．“”．．、．、、1-2．20.9%．3-9、、．、、．310．11-17．18、19-20、、21．．322-29CFD．24220164JOUＲNALOFBASICSCIENCEANDENGINEEＲINGVol．24No．2April2016CFD．25Fluent、Stakic27k-ξAkbarzadeh28k-ξk-ωk-ξ29Fluentk-ξ．Fluent．11.11.1．11234Ｒe＞ＲecＲec3023k-ξ．1.1．221-22ux+vy=01ut+uux+vuy=1ρyμuy－ρ()u'v'2uxvyμρu'v'．cAt+ucAx+vcAy=1ρDAB+DTycA()y3cAADABADT．KεKt+uKx+vKy=yνtσK+()νK()y+P－ε4εt+uεx+vεy=yνtσε+()νε()y+Cε1εKP－Cε2ε2K5σK、Cs1、Cs2σs1.0、1.44、1.921.3．1.1．330DAB=0.001858T321/MA+1/MB12Pσ2ABΩD6TKMkg/molPkPaδAB973No．2ΩDLennard-Jones．6、DABT2P2=DABT1P1P1P()2T2T()11.5ΩDT1ΩDT276720℃1．1Table1Oxygendiffusioncoefficientatdifferentaltitudes/m/kPa/m2/s0101.3252.043×10－5300070.1172.952×10－5350065.8923.142×10－5400061.6563.357×10－5450057.8543.578×10－51.28×10m1．Fluent312dd．33mm10mm6mm12342320.01s1200s．、、．CFDANSYSFluent13.0SIMPLE10－4．1．2．34．5．1Fig．1Numericalcalculationarea1.36mm．0、3000、3500、40004500m1.51.2m3/h2．083Vol．24．2Table2Numericalsimulationconditionsandcontents/%/m3/h/m/s901.514.74901.211.79900.757.37900.65.891.4．、、、、、、、290±3%．1．2．3．4578．6．9．10．11．0.4mm1213141516．17．18．2Fig．2FlowchartoftheexperimentalprocessZO-101T0.1%～100%≤2%USB5936CITYMOX-20～100%＜12s0．1kPaO2DQF-60～30m/s≤3s≤3%0.01m/sDK800-6F0～2m3/h2.5．13523347．658．6mm1.51.2m3/h183No．242．22.134．3x=0.1～1.1mx=1.1～2.7m．．3Fig．3Axialvelocitydistributionofoxygendiffusion4Fig．4Oxygen-enrichedregionsformedbyoxygendiffusing422%t=25s．0.2m．2.2t=25s5t=25s．x=0～0.9m0．283Vol．245Fig．5Axialvelocitydistributionofoxygendiffusionatdifferentaltitudes21-22umx1um/u0=A/x/du0A．3Ｒ2≥0.95．3Table3Axialvelocitydistributionofoxygendiffusionatdifferentaltitudes/mA3500um/u0=10.788/x/d10.7884000um/u0=11.656/x/d11.6564500um/u0=12.617/x/d12.6174500um/u0=13.793/x/d13.793um．um/383No．2u0AAAA=0.002h+4.411hmＲ2≥0.95．2.3t=30s0．6t=30s．6x=0～1.5m．6Fig．6AxialoxygenmolarconcentrationdistributionofoxygendiffusionatdifferentaltitudesCm=A1exp－x/t1+A2exp－x/t2+y0ABt1t2y04Ｒ2≥0.99．483Vol．244Table4Axialoxygenmolarconcentrationdistributionofoxygendiffusionatdifferentaltitudes/m3000A1·exp－x/t1+10.415·exp－x/0.063+5.350A1=9.402+0.088·u0t1=－0.142+0.144·u03500A1·exp－x/t1+10.845·exp－x/0.069+5.2078A1=7.709+0.124·u0t1=－0.313+0.199·u04000A1·exp－x/t1+10.419·exp－x/0.076+5.075A1=5.391+0.227·u0t1=0.305+0.112·u04500A1·exp－x/t1+9.118·exp－x/0.064+4.810A1=6.606+0.296·u0t1=－0.155+0.148·u0Cm．2.42.4．1《》5322000m．5Table5Oxygenconcentrationofoxygendiffusingareaatdifferentaltitudes/m/kPa/%300070.11724.02350065.89225.78400061.65627.71450057.85429.837t=30s．t=30st=30s．7“”23-25．．583No．27Fig．7Oxygen-enrichedregionsformedbyoxygendiffusingatdifferentaltitudes2.4．28．88Fig．8Oxygen-enrichedareaformedbyoxygendiffusingatdifferentaltitudes683Vol．24．FLDABFlnF=k0－5.372lnL－3.21×104DAB+2.243×105lnLDAB－4.393×109D2AB≤10%k0=7.14m2Lm3/hDABm2/s．2.4．31.51.2m3/h6．6．6Table6Oxygen-enrichedareaformedbyoxygendiffusingwithdifferentnumbersofoutlet/m/m3/h/m2/m2/%30001.517.35115.7469.2530001.213.80911.33517.9235001.511.3267.44934.2435001.28.2604.65943.5940001.57.1793.56050.4140001.24.7591.97758.4645001.54.0471.31167.6145001.22.3900.72969.47．31x=0～1.5mum/u0=0.002+4.411/x/d2“”lnF=k0－5.372lnL－3.21×104DAB+2.243×105lnLDAB－4.393×109D2ABk0=7.14m23．783No．21．M．199622-40GaoChunjin．OxygentherapyandoxygenhealthcareM．BeijingMassesPress199622-402．M．2010207-263LiuYingshuZhangHuiLiuWenhaietal．AnoxicenvironmentoxygenmakingandsupplytechnologyM．BeijingMetallurgicalIndustryPress2010207-2633．J．2003124471-473YangGuoyuFengZhengzhiWangTao．EffectofHighaltitudeanoxicenvironmentonmentalfunctionandprotectionJ．ChineseJournalofBehavioralMedicalScience2003124471-4734．J．1999624270-273DuJianyingLiXueyiZhuangYongetal．EffectsofacutemildandmoderatehypoxiaonhumanshortmemoryJ．SpaceMedicine＆MedicalEngineering1999624270-2735．J．200096443-445MaYongZhangXizhouXiaoDongetal．EffectsofacuteandchronichypoxiaonlimbmovingfunctionJ．ChineseJournalofBehavioralMedicalScience200096443-4456PaganiMＲavagnanGSalmasoD．EffectofacclimatisationtoaltitudeonlearningJ．Cortex1998342243-2477Shukitt-HaleBStillmanMJWelchDIetal．HypobarichypoxiaimpairsspatialmemoryinanelevationdependentfashionJ．BehavioralandNeuralBiology1994623244-2498KramerAFCoyneJTStrayerDL．CognitivefunctionathighaltitudeJ．HumanFactors1993352329-3339BounonMNoelJorandMCThermeP．PsychologicalchangesduringaltitudehypoxiaJ．AviationSpaceEnvironmentalMedicine1995664330-33610．J．20051415-7LiuYingshuCuiHongsheLiuWenhaietal．StudyontechnologyofoxygensupplyintunneldevelopmentinhighattitudeareaJ．Mining＆Metallurgy20051415-711．J．20131579-81YangHongshuangLiuXiaoqing．Studyandapplicationofhighaltitudeoxygen-enrichedintegratedenvironmentJ．ChinaScienceandTechnologyAchievements20131579-8112WestJB．PotentialuseofoxygenenrichmentofroomairinmountainresortsJ．HighAltitudeMedicine＆Bilogy20023159-6513WestJB．AstrategyforoxygenconditioningathighaltitudeComparionwithairconditioningJ．JournalofAppliedP