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Draft. This manual is new and still being checked against the software as it is verified. Some pages will change. If something here does not match what you see, the software is right — tell us and we will fix the page.

Models

Setup tree: Models

  • Control: choice (ComboRow)
  • Default: Incompressible
  • Bound to: CaseState.analysisType
  • Options: Incompressible, Compressible, Convective Heat Transfer, Conjugate Heat Transfer, Multiphase (VoF), Multiphase (Euler-Euler), Particles (Lagrangian), Combustion / Reacting, Atmospheric & Wind, Marine & Waves, Scalar transport, Cavitation, Supersonic / shock, Solid conduction, Compressible multiphase, Miscible mixing, Sediment / drift flux, Shallow water, Free surface (potential), Premixed combustion, Spray, Solid stress, Electrostatics, Magnetostatics, Magnetohydrodynamics, Rotating frame (SRF)
  • Writes: controlDict/application

The in-app guidance depends on the case:

  • Mach < 0.3, density variation negligible.
  • See the Create Simulation dialog for the full description.
  • Control: choice (ComboRow)
  • Default: Steady-state
  • Bound to: CaseState.timeDependency
  • Options: Transient, Steady-state (from either branch of CaseState.transientOnly``)
  • Writes: fvSchemes/ddtSchemes

This analysis has no steady form - the solver integrates in time.

  • Control: choice (ComboRow)
  • Default: SIMPLE
  • Bound to: CaseState.algorithm
  • Options: SIMPLE, SIMPLEC, PIMPLE, PISO (from either branch of CaseState.steady``)
  • Writes: fvSolution/…
  • Control: choice (ComboRow)
  • Default: k-omega SST
  • Bound to: CaseState.turbulenceModel
  • Options: Laminar, k-epsilon, realizable k-epsilon, RNG k-epsilon, k-omega, k-omega SST, k-omega SST LM, GEKO, EBRSM, Spalart-Allmaras, LRR (RSM), SSG (RSM), LES WALE, LES Smagorinsky, SA-DDES, SST-IDDES
  • Writes: turbulenceProperties/RAS/model
  • Control: choice (ComboRow)
  • Default: Wall functions
  • Bound to: CaseState.wallTreatment
  • Options: Wall functions, Resolved (low-Re), Automatic blending

Selects a coherent set across nut, k, omega and alphat.

  • Control: on/off (ToggleRow)
  • Default: false
  • Bound to: CaseState.energyEnabled
  • Control: on/off (ToggleRow)
  • Default: false
  • Bound to: CaseState.gravityEnabled

The application checks these before a run and reports them in the Problems tab against this step.

Severity Message
error … has no steady form. … integrates in time; set Time dependency to Transient.
error A two-phase case needs gravity. Without it there is nothing to separate the phases and the interface will not settle.
error … has no turbulence model, so it will not read k, omega or nut. Set the turbulence model to Laminar, or choose a solver that has one.
error … has no steady form. Set the time dependency to Transient.
error … has no transient form. Set the time dependency to Steady-state.
warning … needs …, which this app does not write. Add it to the case directory before running.
error … is not part of the … tier. The case is safe and nothing has been lost - choosing another analysis type, or upgrading, will let it run.
warn Gravity is off for a buoyancy-sensitive analysis type.

marks a value the application computes at run time, so the source carries no fixed text for it.