FLOW-3D Version 9.4 Features FLOW-3D Version 9.4 Features

Improving the world through accurate flow modeling

Meshing & Geometry

• Structuredfinitedifference/controlvolume

• Multi-BlockGriddingwith:– Nestedblocks– Linkedblocks

• Fractionalareas/volumes(FAVORTM)forefficient&accurategeometrydefinition

• SolidsModeler• ImportsmostCADfiles• Grid&geometryindependence

Flow Type Options

• Internal,external&free-surfaceflows• Three,two&onedimensional

problems• Transientflows• Cartesianorcylindricalcoordinates• Inviscid,viscous,laminar&turbulent

flows• Non-inertialreferenceframes• Multiplescalarspecies• Two-phaseflows• Heattransferwithphasechange• Saturated&unsaturatedporousmedia

Thermal Modeling Options

• Naturalconvection• Forcedconvection• Conductioninfluid&solid• Fluid-solidheattransfer

– Conduction– Specifiedheatflux– Specifiedsolidtemperature

• Heattransfertovoidsfromfluid/obstacles

• Distributedenergysources/sinksinfluidsorsolids

• Radiationbyemissivity• Viscousheating• Temperature-dependentmaterial

properties

Numerical Modeling Options

• Volume-of-Fluid(VOF)methodforfluidinterfaces-TruVOF

• First,secondorthirdorderadvection• Sharpfluidinterfacetracking• Implicit&explicitmodelingoptions• Point,linerelaxation&GMRESpressure

solvers• User-definedvariables,subroutines&

output• Utilitiesforruntimeinteractionduring

execution

Flow Definition Options

• Generalinitialandboundaryconditions– Symmetry– Rigidwalls– Continuative– Periodic– Specifiedpressure– Specifiedvelocity– Outflow– Gridoverlay– Hydrostatic– Custom– Volumeflowrate– Linearandnon-linearsurfacewaves

• Restartprevioussimulation– Continuationofasimulation– Overlayboundaryconditionsfromaprevioussimulation

– Changemesh– Add,deleteorchangemodelparameters

Fluid Modeling Options

• Oneincompressiblefluid–confinedorwithfreesurfaces

• Twoincompressiblefluids–miscibleorwithsharpinterfaces

• Compressiblefluid–subsonic,transonic,supersonic

• Stratifiedfluid• Acousticphenomena• Massparticleswithvariabledensityor

diameter

Physical Modeling Options

• Multi-speciesscourdeposition&bedloadtransport

• Cavitation• Phasechange(liquid-vapor,liquid-solid

&liquid-gas)• Surfacetension• Thermocapillaryeffects• Walladhesion• Wallroughness• Vapor&gasbubbles• Solidification&melting(heat-of-

transformationtable)• Mass/momentum/energysources• Shear,density&temperature-

dependentviscosity• Thixotropicviscosity• Elasticstress• Electricfield• Elasticmembranes&walls• Evaporationresidue• Dielectricphenomena• Electro-osmosis• Electrostaticparticles• Electro-mechanicaleffects• Jouleheating• Airentrainment• Molecular&turbulentdiffusion• Temperature-dependentmaterial

properties

Data Processing Options

• Automaticorcustomgraphrequests• InteractiveOpenGL-basedgraphics(grid

overlayoptional)• ColororB/Wvector,contour,3Dsurface

&particleplots• Movinghistory&probedata• Force&momentcomputations• Animationoutput• PostScript,JPEG&Bitmapoutput• Streamlines• STLgeometryviewer

FLOW-3D Version 9.4 Features FLOW-3D Version 9.4 Features

www.flow3d.com | sales@flow3d.com | 505.982.0088

Metal Casting Models

• Solidification&melting• Solidificationshrinkagewith

interdendriticfeeding• Microporosity• Binarysegregationduringsolidification• Solid-fractiondependentlatentheat

release• Thermaldiecycling• Thermalstress&deformations• Defecttracking• Cavitationpotential• Lost-foamcasting• Semi-solidmaterial• Moistureinsand&molds• Coregasgeneration• Backpressure&vents• Shotsleeves• AirEntrainment• Temperature-dependentmaterial

properties

Two-Phase & Two-Component Models

• Liquid/liquid&gas/liquidinterfaces• Two-fluidmixtures• Onecompressiblefluidwithadispersed

incompressiblecomponent• Two-componentdrift-flux• Two-component,vapor/non-

condensiblegases• Phasetransformationsforgas-liquid&

liquid-solid• Adiabaticbubbles• Bubbleswithphasechange• Continuumfluidwithdiscreteparticles• Scalartransport

Discrete Particle Models

• Masslessmarkerparticles• Massparticlesofvariablesize/mass• Linear&quadraticfluid-dynamicdrag• Monte-Carlodiffusion• Particle-Fluidmomentumcoupling• Coefficientofrestitutionorsticky

particles• Pointorvolumetricparticlesources• Chargedparticles• Probeparticles

Turbulence Models

• Prandtlmixinglength• One-equationtransport• Two-equationκ-εmodel• RNGκ-εmodel• Largeeddysimulation

Porous Media Models

• Variableporosity• Directionalporosity• Generalflowlosses(linear&quadratic)• Capillarypressure• Unsaturatedflow• Heattransferinporousmedia• Porousbaffles&solidobjectswithlinear

&quadraticflowlosses

Advanced Physical Models

• GeneralMovingObjectmodelwith6DegreesofFreedom–userspecifiedmotionorfully-coupledwithfluidflow

• Rotating/spinningobjects• Collisionmodel• Movingobjectassemblies• Tetheredmovingobjects(springs&

ropes)• Flexingmembranesandwalls

Shallow Flow Models

• Shallowwatermodel• Generaltopography• Wetting&drying• Windshear• Groundroughnesseffects

User Conveniences

• Mesh&initialconditiongenerators• Time-stepcontrolforaccuracy&

stability• Automaticlimitedcompressibility• Convergencecontrol• Mentorhelptooptimizeefficiency• Changesolutionparametersassolver

runs• Manage&launchmultiplesimulations• Automaticterminationbasedonuser-

definedcriteria

Chemistry Models

• Stiffequationsolverforchemicalrateequations

• Stationaryoradvectedspecies

Coupling with Other Programs

• GeometryinputfromStereolithography(STL)files–binaryorASCII

• GeometryinputfromANSYSorI’DEAStetrahedraldata

• DirectinterfaceswithEnSight,FIELDVIEW&Tecplotvisualizationprograms

• PLOT3Doutput• Neutralfileoutput• Extensivecustomizationpossibilities• Topographicdata

Supported Platforms

Processors

• x86/x86-32(IntelPentium/Xeon,AMDAthlon/Opteron)

• x86/x86-64(IntelPentium/Xeon/Core,AMDAthlon/Opteron)

Operating Systems

• 32-bitWindowsXP/Vista• 64-bitWindowsXP/Vista&Server

2003/2008• 32-bitRedhatEnterprise3.0+• 64-bitRedhatEnterprise3.0+

&SUSEEnterprise9.0+

Hardware Requirements

ThehardwarerequirementstorunFLOW-3Ddependonthenumberofphysicalmodelsactiveduringthesimulation.Aniso-thermal,inviscidsimulationrequiresroughly1GBofmemoryfor2.5millioncomputationalcellsindoubleprecision.Activatingturbulence&heattransferincreasesthememoryrequirementsbyabout30%. Asingleprecisionsolverreducesthememoryrequirementsbyroughly40%.

FLOW-3D&TruVOFareregisteredtrademarksintheUSAandothercountries.