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在简要综述研究现状的基础上,本文通过量级分析导出了影响竖直多孔介质同心套管内混合对流的无量纲参数,提出厂简化混合对流为受迫对流的判据,分析计算了非达西效应的影响,并与实验研究的结果进行了对比。/RepandH/dp,whichgovernthemixedconvectioninaverticalannulusfilledwithporousmedia,arededucedthroughdimensionalanalysis,andthecriteriaformixedconvectionisestabilishedthereby.Themixedcalculatedresultsfordetectingthenon-Darcyeffectsarediscussed.Thepredictedresultsagreewellwiththeexperiments.Keywords:porousmedia;mixedconvection 相似文献
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V. S. Letokhov 《Chinese Journal of Lasers》1994,3(4):289-314
Multiplephotonlaserphotochemistry¥V.S.Letokhov(InstituteofSpectroscopy,USSRAcademyofSciences,Troitzk,MoscowRegion,142092,Russ... 相似文献
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1IntroductionLaserDopplertechniqueisacomprehensivetechniquerelevanttooptics,laser,optoelectronicdetectingandsignalprocesing.... 相似文献
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Modulation Instability in Non Kerr-like Optical Fibers near the Zero Dispersion Point 总被引:2,自引:0,他引:2
1 Introduction Modulationinstability(MI)insilicabasedglassfiber,firstproposedbyHasegawa[1],referstoaprocessinwhichacontinuous... 相似文献
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1IntroductionThestudyofdynamicalsystemsperturbedbynoiseisrecurentinmanycontextsofphysics.Inparticular,inthecontextofmorereali... 相似文献
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SHEN Wenda 《Chinese Journal of Lasers》1996,5(6):516-525
TheLightTracksintheOpticalFiberswithTwoTypesofParabolicRefractiveIndices¥SHENWenda(DepartmentofPhysics,ShanghaiUniversity,Sha... 相似文献
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XU Jianqiu LOU Qihong 《Chinese Journal of Lasers》1998,7(4):353-356
1IntroductionBroadbandstimulatedRamanscatering(SRS)hasbeenusedinanumberoffields,includingwavelengthconversion,beamcleanupandp... 相似文献
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GE Baozhen WANG Jianping ZHANG Yimo LI Heqiao 《Chinese Journal of Lasers》1998,7(5):430-438
1IntroductionLaserlightscateringmeasurement,whichisbasedontheMiescateringandFraunhoferdifractiontheory,iswidelyusedowingtoits... 相似文献