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 | [email protected] | 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.
