二維矩形容器內(nèi)帶Soret效應(yīng)的Marangoni對流的格子Boltzmann模擬.pdf

1、華中科技大學碩士學位論文二維矩形容器內(nèi)帶Set效應(yīng)的Marangoni對流的格子Boltzmann模擬姓名：朱白楊申請學位級別：碩士專業(yè)：計算數(shù)學指導教師：施保昌20110520華中科技大學碩士學位論文華中科技大學碩士學位論文IIAbstractFthepastfewyearsLatticeBoltzmannMethodisbecominganefficientmethodusedfsimulatingcomplexfluidcompu

2、ting.BasedonmesoscopicparticlebackgroundLatticeBoltzmannMethodhasmanyotherexclusiveadvantages.FromaphysicalstpointLatticeBoltzmannMethodcoulddealwithcomplicatedinteractionbetweenfluidboundarydifferentfluidcomponent(phase

3、state)differentfluidinterfacesoon.FromacomputingstpointLatticeBoltzmannMethodisshowtimepropulsionmethodwhichmakesitscomputationalefficiencyexceedstraditionalnumericalmethod.MeanwhiletheevolutionaryprocessofLatticeBoltzma

4、nnMethodisquitebriefclarityprogramisalsoquiteconcise.Marangoniconvectionistheflowwhichisquitetypicalinthebaseofmicrogravitybutisakindofphenomenonwhichisquiteimptantinmicrogravityenvironment.Marangoniconvectionisaflowwhic

5、hderivedfromunifmsurfacetentionwhichmakesitisrelevanttofreesurfaceinterface.LatticeBoltzmannmethodisrarelyappliedinMarangoniconvectionwithSeteffect.ThearticleproposesthatLatticeBoltzmannMethodbeusedfsimulatingMarangonico

6、nvectionwithSeteffectin2DRectangularcavity.VelocityfieldadoptsincompressibleD2G9modeltemperaturefieldconcentrationfieldbothadoptD2G5modelthenthepurethermalproblemcoupledwithsolutaldominatedregime.Butweemphasizeondiscussi

7、ngthelatter.ThepurposeofthepaperisdiscussinghowthestreamlinescontoursoftemperatureconcentrationchangeswithdifferentparametersincludingvelocitytemperatureconcentrationonthefreesurfacehizontalvelocityinX=A2location.Thepape