fluent的并行计算

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1、PossibilitiesofParallelCalculationsinSolvingGasDynamicsProblemsintheCFDEnvironmentofFLUENTSoftwareN.ChebotarevResearchInstituteofMathematicsandMechanics,KazanStateUniversity,Kazan,RussiaReceivedAugust25,2008Abstract：Theresultsofstudyinganincompressiblegasflowfield

2、inaperiodicelementoftheporousstructuremadeupofthesameradiusspheresarepresented;thestudieswerebasedonthesolutionoftheNavier–StokesequationsusingFLUENTsoftware.Thepossibilitiestoacceleratethesolutionprocesswiththeuseofparallelcalculationsareinvestigatedandthecalcula

3、tionresultsunderchangesofpressuredifferentialintheperiodicelementaregiven.DOI:10.3103/S1068799809010103Multiprocessorcomputersthatmakeitpossibletorealizetheparallelcalculationalgorithmsareinrecentuseforscientificandengineeringcalculations.Oneofthefieldsinwhichappl

4、icationofparallelcalculationsmustfacilitateaconsiderableprogressisthesolutionofthree-dimensionalproblemsoffluidmechanics.ManyinvestigatorsusestandardcommercialCFDsoftwarethatprovidefastandconvenientsolutionsofthree-dimensionalproblemsincomplicatedfields.Thepresent

5、-dayCFDpackagesintendedtosolvetheNavier–Stokesequationsdescribingflowsinthearbitraryregionscontainpossibilitiesofparallelprocessing.Theobjectiveofthispaperistotestthesolutionsofathree-dimensionalproblemofgasdynamicsusingFLUENTsoftware[1]byamultiprocessorcomputerin

6、themodeofparallelprocessing.Anincompressiblegasflowintheporousstructuremadeupofclosely-arrangedspheresiscalculated.Structuresofdifferentspherearrangementarewidelyusedasmodelsofporousmediainthetheoryoffiltration.Usingtheporouselementsitispossibletorealizetheprocess

7、esoffiltration,phaseseparation,throttling,includingthoseinaircraftengineering[2].ThehydrodynamicflowsinporousstructuresinthedomainofsmallReynoldsnumbersaredescribed,asarule,undertheStokesapproximationwithoutregardfortheinertiatermsintheequationsoffluidmotion[3].At

8、thesametime,theflowvelocitiesintheporousmediamayberatherlarge,andtheStokesapproximationwillnotdescribearealflowpattern.Inthiscasethesolutionofthecomplet