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The new flexible and extensible modular solvers structure already provides most
of the simulation functionality needed for single phase, multiphase,
multicomponent etc. fluid flow problems as well as a very effective method of
combining these with solid heat transfer, solid stress, surface film to solve
complex multi-region, multi-physics problems and are now the primary mechanism
for the further development of OpenFOAM simulation capability in future. To
emphasis this for both users and developers the applications/solvers directory
has been separated into applications/modules containing all the solver modules:
├── modules
│ ├── compressibleMultiphaseVoF
│ ├── compressibleVoF
│ ├── film
│ ├── fluid
│ ├── fluidSolver
│ ├── functions
│ ├── incompressibleDenseParticleFluid
│ ├── incompressibleDriftFlux
│ ├── incompressibleFluid
│ ├── incompressibleMultiphaseVoF
│ ├── incompressibleVoF
│ ├── isothermalFilm
│ ├── isothermalFluid
│ ├── movingMesh
│ ├── multicomponentFluid
│ ├── multiphaseEuler
│ ├── multiphaseVoFSolver
│ ├── shockFluid
│ ├── solid
│ ├── solidDisplacement
│ ├── twoPhaseSolver
│ ├── twoPhaseVoFSolver
│ ├── VoFSolver
│ └── XiFluid
applications/solvers containing the foamRun and foamMultiRun solver applications
which instantiate and execute the chosen solver modules and also standalone
solver applications for special initialisation and test activities:
├── solvers
│ ├── boundaryFoam
│ ├── chemFoam
│ ├── foamMultiRun
│ ├── foamRun
│ └── potentialFoam
and applications/legacy containing legacy solver applications which are not
currently being actively developed but the functionality of which will be merged
into the solver modules or form the basis of new solver modules as the need
arises:
├── legacy
│ ├── basic
│ │ ├── financialFoam
│ │ └── laplacianFoam
│ ├── combustion
│ │ └── PDRFoam
│ ├── compressible
│ │ └── rhoPorousSimpleFoam
│ ├── electromagnetics
│ │ ├── electrostaticFoam
│ │ ├── magneticFoam
│ │ └── mhdFoam
│ ├── incompressible
│ │ ├── adjointShapeOptimisationFoam
│ │ ├── dnsFoam
│ │ ├── icoFoam
│ │ ├── porousSimpleFoam
│ │ └── shallowWaterFoam
│ └── lagrangian
│ ├── dsmcFoam
│ ├── mdEquilibrationFoam
│ └── mdFoam
Correspondingly the tutorials directory structure has been reorganised with the
modular solver directories at the top level with names that make it easier for
users to find example cases relating to their particular requirements and a
legacy sub-directory containing cases corresponding to the legacy solver
applications listed above:
├── compressibleMultiphaseVoF
│ └── damBreak4phaseLaminar
├── compressibleVoF
│ ├── ballValve
│ ├── climbingRod
│ ├── damBreak
│ ├── depthCharge2D
│ ├── depthCharge3D
│ ├── sloshingTank2D
│ └── throttle
├── film
│ └── rivuletPanel
├── fluid
│ ├── aerofoilNACA0012
│ ├── aerofoilNACA0012Steady
│ ├── angledDuct
│ ├── angledDuctExplicitFixedCoeff
│ ├── angledDuctLTS
│ ├── annularThermalMixer
│ ├── BernardCells
│ ├── blockedChannel
│ ├── buoyantCavity
│ ├── cavity
│ ├── decompressionTank
│ ├── externalCoupledCavity
│ ├── forwardStep
│ ├── helmholtzResonance
│ ├── hotRadiationRoom
│ ├── hotRadiationRoomFvDOM
│ ├── hotRoom
│ ├── hotRoomBoussinesq
│ ├── hotRoomBoussinesqSteady
│ ├── hotRoomComfort
│ ├── iglooWithFridges
│ ├── mixerVessel2DMRF
│ ├── nacaAirfoil
│ ├── pitzDaily
│ ├── prism
│ ├── shockTube
│ ├── squareBend
│ ├── squareBendLiq
│ └── squareBendLiqSteady
├── incompressibleDenseParticleFluid
│ ├── column
│ ├── cyclone
│ ├── Goldschmidt
│ ├── GoldschmidtMPPIC
│ └── injectionChannel
├── incompressibleDriftFlux
│ ├── dahl
│ ├── mixerVessel2DMRF
│ └── tank3D
├── incompressibleFluid
│ ├── airFoil2D
│ ├── ballValve
│ ├── blockedChannel
│ ├── cavity
│ ├── cavityCoupledU
│ ├── channel395
│ ├── drivaerFastback
│ ├── ductSecondaryFlow
│ ├── elipsekkLOmega
│ ├── flowWithOpenBoundary
│ ├── hopperParticles
│ ├── impeller
│ ├── mixerSRF
│ ├── mixerVessel2D
│ ├── mixerVessel2DMRF
│ ├── mixerVesselHorizontal2DParticles
│ ├── motorBike
│ ├── motorBikeSteady
│ ├── movingCone
│ ├── offsetCylinder
│ ├── oscillatingInlet
│ ├── pipeCyclic
│ ├── pitzDaily
│ ├── pitzDailyLES
│ ├── pitzDailyLESDevelopedInlet
│ ├── pitzDailyLTS
│ ├── pitzDailyPulse
│ ├── pitzDailyScalarTransport
│ ├── pitzDailySteady
│ ├── pitzDailySteadyExperimentalInlet
│ ├── pitzDailySteadyMappedToPart
│ ├── pitzDailySteadyMappedToRefined
│ ├── planarContraction
│ ├── planarCouette
│ ├── planarPoiseuille
│ ├── porousBlockage
│ ├── propeller
│ ├── roomResidenceTime
│ ├── rotor2DRotating
│ ├── rotor2DSRF
│ ├── rotorDisk
│ ├── T3A
│ ├── TJunction
│ ├── TJunctionFan
│ ├── turbineSiting
│ ├── waveSubSurface
│ ├── windAroundBuildings
│ └── wingMotion
├── incompressibleMultiphaseVoF
│ ├── damBreak4phase
│ ├── damBreak4phaseFineLaminar
│ ├── damBreak4phaseLaminar
│ └── mixerVessel2DMRF
├── incompressibleVoF
│ ├── angledDuct
│ ├── capillaryRise
│ ├── cavitatingBullet
│ ├── climbingRod
│ ├── containerDischarge2D
│ ├── damBreak
│ ├── damBreakLaminar
│ ├── damBreakPorousBaffle
│ ├── damBreakWithObstacle
│ ├── DTCHull
│ ├── DTCHullMoving
│ ├── DTCHullWave
│ ├── floatingObject
│ ├── floatingObjectWaves
│ ├── forcedUpstreamWave
│ ├── mixerVessel
│ ├── mixerVessel2DMRF
│ ├── mixerVesselHorizontal2D
│ ├── nozzleFlow2D
│ ├── planingHullW3
│ ├── propeller
│ ├── sloshingCylinder
│ ├── sloshingTank2D
│ ├── sloshingTank2D3DoF
│ ├── sloshingTank3D
│ ├── sloshingTank3D3DoF
│ ├── sloshingTank3D6DoF
│ ├── testTubeMixer
│ ├── waterChannel
│ ├── wave
│ ├── wave3D
│ └── weirOverflow
├── isothermalFilm
│ └── rivuletPanel
├── isothermalFluid
│ ├── potentialFreeSurfaceMovingOscillatingBox
│ └── potentialFreeSurfaceOscillatingBox
├── legacy
│ ├── basic
│ │ ├── financialFoam
│ │ │ └── europeanCall
│ │ └── laplacianFoam
│ │ └── flange
│ ├── combustion
│ │ └── PDRFoam
│ │ └── flamePropagationWithObstacles
│ ├── compressible
│ │ └── rhoPorousSimpleFoam
│ │ ├── angledDuctExplicit
│ │ └── angledDuctImplicit
│ ├── electromagnetics
│ │ ├── electrostaticFoam
│ │ │ └── chargedWire
│ │ └── mhdFoam
│ │ └── hartmann
│ ├── incompressible
│ │ ├── adjointShapeOptimisationFoam
│ │ │ └── pitzDaily
│ │ ├── dnsFoam
│ │ │ └── boxTurb16
│ │ ├── icoFoam
│ │ │ ├── cavity
│ │ │ └── elbow
│ │ ├── porousSimpleFoam
│ │ │ ├── angledDuctExplicit
│ │ │ └── angledDuctImplicit
│ │ └── shallowWaterFoam
│ │ └── squareBump
│ ├── lagrangian
│ │ ├── dsmcFoam
│ │ │ ├── freeSpacePeriodic
│ │ │ ├── freeSpaceStream
│ │ │ ├── supersonicCorner
│ │ │ └── wedge15Ma5
│ │ ├── mdEquilibrationFoam
│ │ │ ├── periodicCubeArgon
│ │ │ └── periodicCubeWater
│ │ └── mdFoam
│ │ └── nanoNozzle
├── mesh
│ ├── blockMesh
│ │ ├── pipe
│ │ ├── sphere
│ │ ├── sphere7
│ │ └── sphere7ProjectedEdges
│ ├── refineMesh
│ │ └── refineFieldDirs
│ └── snappyHexMesh
│ ├── flange
│ └── pipe
├── movingMesh
│ └── SnakeRiverCanyon
├── multicomponentFluid
│ ├── aachenBomb
│ ├── counterFlowFlame2D
│ ├── counterFlowFlame2D_GRI
│ ├── counterFlowFlame2D_GRI_TDAC
│ ├── counterFlowFlame2DLTS
│ ├── counterFlowFlame2DLTS_GRI_TDAC
│ ├── DLR_A_LTS
│ ├── filter
│ ├── lockExchange
│ ├── membrane
│ ├── nc7h16
│ ├── parcelInBox
│ ├── SandiaD_LTS
│ ├── simplifiedSiwek
│ ├── smallPoolFire2D
│ ├── smallPoolFire3D
│ ├── verticalChannel
│ ├── verticalChannelLTS
│ └── verticalChannelSteady
├── multiphaseEuler
│ ├── bed
│ ├── bubbleColumn
│ ├── bubbleColumnEvaporating
│ ├── bubbleColumnEvaporatingDissolving
│ ├── bubbleColumnEvaporatingReacting
│ ├── bubbleColumnIATE
│ ├── bubbleColumnLaminar
│ ├── bubbleColumnLES
│ ├── bubblePipe
│ ├── damBreak4phase
│ ├── fluidisedBed
│ ├── fluidisedBedLaminar
│ ├── Grossetete
│ ├── hydrofoil
│ ├── injection
│ ├── LBend
│ ├── mixerVessel2D
│ ├── mixerVessel2DMRF
│ ├── pipeBend
│ ├── steamInjection
│ ├── titaniaSynthesis
│ ├── titaniaSynthesisSurface
│ ├── wallBoilingIATE
│ ├── wallBoilingPolydisperse
│ └── wallBoilingPolydisperseTwoGroups
├── multiRegion
│ ├── CHT
│ │ ├── circuitBoardCooling
│ │ ├── coolingCylinder2D
│ │ ├── coolingSphere
│ │ ├── heatedDuct
│ │ ├── heatExchanger
│ │ ├── multiphaseCoolingCylinder2D
│ │ ├── reverseBurner
│ │ ├── shellAndTubeHeatExchanger
│ │ ├── VoFcoolingCylinder2D
│ │ └── wallBoiling
│ └── film
│ ├── cylinder
│ ├── cylinderDripping
│ ├── cylinderVoF
│ ├── hotBoxes
│ ├── rivuletBox
│ ├── rivuletPanel
│ ├── splashPanel
│ └── VoFToFilm
├── potentialFoam
│ ├── cylinder
│ └── pitzDaily
├── resources
│ ├── blockMesh
│ ├── geometry
│ └── thermoData
├── shockFluid
│ ├── biconic25-55Run35
│ ├── forwardStep
│ ├── LadenburgJet60psi
│ ├── movingCone
│ ├── obliqueShock
│ ├── shockTube
│ └── wedge15Ma5
├── solidDisplacement
│ ├── beamEndLoad
│ └── plateHole
└── XiFluid
├── kivaTest
└── moriyoshiHomogeneous
Overview ======== + W3 example case of hydrodynamics of a planing hull Mesh ==== + The example includes two different approaches for meshing the case + The first approach uses no cell refinement in the vertical direction + The second approach includes local cell refinement, producing a smaller mesh + Cell refinement can cause disturbances of the interface + Where refinement is present, PLIC-based schemes perform much better, producing far less interface disturbance than the standard interface compression scheme. + The first approach has the advantage of avoiding interface disturbances but for the potential cost of a larger mesh than with local refinement Experimental results (ref. 1) ============================= + Velocity = 4.598 m/s + Trim angle = 3.485 deg + Drag = 50.691 N Numerical results mesh 1 ======================== Without local refinement + Velocity = 4.598 m/s + Trim angle = 2.794 deg + Drag = 48.616 N Numerical results mesh 2 ======================== With local refinement + Velocity = 4.598 m/s + Trim angle = 3.027 deg + Drag = 47.987 N Acknowledgment ============== + Thanks to Raffaele Ponzini, Ph.D. Eng. from CINECA, for kindly sharing the W3 hull geometry and for his valuable insight into the science of ship hulls References ========== 1. Begovic, E. and Bertorello, C., 2012. Resistance assessment of warped hullform. Ocean Engineering, 56, pp.28-42 2. Ponzini, R., Salvadore, F., Begovic, E. and Bertorello, C., 2020. Automatic CFD Analysis Of Planing Hulls By Means Of A New Web-Based Application: Usage, Experimental Data Comparison And Opportunities