多孔介質的奇異擴散動力學的研究.pdf

1、中國農業(yè)大學博士后學位論文多孔介質的奇異擴散動力學的研究姓名：劉剛申請學位級別：博士后專業(yè)：土壤物理指導教師：李保國200210014Abstract中國農業(yè)大學博士后研究x作報告Wecouldbenefitfromthestudyofsoluteandgas’smotioninporousmediaforundorstandingthedynamicbehaviorofundergroundwater，oilinlargescalea

2、ndthediffusionofgasmolecularatsmallscale，ions’transportamongmembranes，etcTheresearchcouMalsouncovergeometricdisorderandfluidvelocity’SeffectOildiffusionWeconstructfractionalorderstochastictransportequationwhichcoulddescr

3、ibethebehaviorthatdeviatefromDarcy’sLawandwithffactaIcharactersbeentakenintoaccount∞well；modifythenormalAdveetive‘dispersionEquation，themobile—immobilemodel，twositesmodelAftercomparingwithexperimentresult，determinethepor

4、essizedistributionandparticlesizedistribution’SeffectOildiffusion(dispersion)Thenon—equilibrimnstatisticalphysicsmethodweusedhasclearphysicsmeaning，whichconsidersbothffactalstructureinsmallscaleandrandomlydistributedmacr

5、oscopicfracturesKeyWords：porousmedia、BrownianMotion、percolation、turbulence、levyflightLevywalk、stabledistribution、Langevinequation、adventivedispersionequation、Fokker—Planckequation、disorderedpotential、fractal、RiemanLiouvi