Numerics
Where it is
Section titled “Where it is”Setup tree: Numerics
Controls
Section titled “Controls”Relaxation
Section titled “Relaxation”Pressure
Section titled “Pressure”- Control: value (
ValueField) - Default:
0.3 - Bound to:
CaseState.relaxP - Writes:
fvSolution/relaxationFactors/fields/p
Momentum
Section titled “Momentum”- Control: value (
ValueField) - Default:
0.7 - Bound to:
CaseState.relaxU - Writes:
fvSolution/relaxationFactors/equations/U
Turbulence
Section titled “Turbulence”- Control: value (
ValueField) - Default:
0.7 - Bound to:
CaseState.relaxTurb
Convergence
Section titled “Convergence”p residual
Section titled “p residual”- Control: value (
ValueField) - Default:
1e-3 - Bound to:
CaseState.resP - Writes:
SIMPLE/residualControl/p
U residual
Section titled “U residual”- Control: value (
ValueField) - Default:
1e-4 - Bound to:
CaseState.resU
Show advanced schemes
Section titled “Show advanced schemes”- Control: on/off (
ToggleRow) - Default:
false
Schemes
Section titled “Schemes”div(phi,U)
Section titled “div(phi,U)”- Control: choice (
ComboRow) - Default:
linearUpwind grad(U) - Bound to:
CaseState.divScheme - Options:
linearUpwind grad(U),linear,upwind,LUST grad(U),limitedLinear 1,vanLeer,QUICK - Writes:
fvSchemes/divSchemes/div(phi,U) - Shown when:
root.advanced
grad(U)
Section titled “grad(U)”- Control: choice (
ComboRow) - Default:
cellLimited Gauss linear 1 - Bound to:
CaseState.gradScheme - Options:
Gauss linear,cellLimited Gauss linear 1,leastSquares - Writes:
fvSchemes/gradSchemes/grad(U) - Shown when:
root.advanced
snGrad
Section titled “snGrad”- Control: choice (
ComboRow) - Default:
limited 0.5 - Bound to:
CaseState.snGradScheme - Options:
corrected,limited 0.5,limited 0.33,uncorrected,orthogonal - Writes:
fvSchemes/snGradSchemes/default - Shown when:
root.advanced
p solver
Section titled “p solver”- Control: choice (
ComboRow) - Default:
GAMG - Bound to:
CaseState.pSolver - Options:
GAMG,PCG,PPCG,PBiCGStab - Writes:
fvSolution/solvers/p/solver - Shown when:
root.advanced
Lists this panel shows
Section titled “Lists this panel shows”Read straight from the data behind the panel, not from a hand-written list.
Preset
Section titled “Preset”From a fixed list in the application.
- Robust
- Balanced
- Accurate
Problems reported against this step
Section titled “Problems reported against this step”The application checks these before a run and reports them in the Problems tab against this step.
| Severity | Message |
|---|---|
| error | The solution diverged: the residuals grew instead of falling. Lower the relaxation factors, improve the worst cells on the Quality pane, or start from potential flow. |
… marks a value the application computes at run time, so the source carries no fixed text for it.