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Stable Fluids - Dynamic Graphics Project

Stable FluidsJosStam AliaswavefrontAbstractBuildinganimationt oolsforfluid-like motionsis animportantandchallengingproblemwithmany ,unlike key frameorpro-ceduralbasedtechniques,permit ananimatortoalmosteffortlesslycreateinte resting,swirlingfluid-like , , it wasbelievedthatphysicalfluidmodelswereto oexpensive to allow thefactthatpreviousmodelsusedunstablesch emestosolve thephys-icalequationsgoverninga , forthefirsttime,weproposeanunconditional lystablemodelwhichstillproducescomplex fluid -like ,ourmethodis largertimestepsandthereforeachieve have usedourmodelinconjuctionwithadvectingsol idtexturestocreatemanyfluid-like [ComputerGraphics]:Three-DimensionalGrap hicsandRealism AnimationKeywords:animationoffluids,Navi er-Stokes,stablesolvers,im-plicitellipti cPDEsolvers,interactive modeling,gaseousphenom-ena,advectedtextu res1 IntroductionOneofthemostintriguingproble msincomputergraphicsisthesimulationofflu id-like behavior.

and in engineering. Fluid mechanics is used as the standard math-ematical framework on which these simulations are based. There is a consensus among scientists that the Navier-Stokes equations are a very good model for fluid flow. Thousands of books and Alias wavefront, 1218 Third Ave, 8th Floor, Seattle, WA 98101, U.S.A. jstam@aw.sgi.com

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