Reference / Input deck / solver / convergence control / cfl
cfl
CFL configuration. A bare number is shorthand for the working CFL: cfl: 2.0 means cfl: {cfl: 2.0}.
cflrequired
float·required·> 0
CFL number
Guidance: Choosing a time-marching scheme →cfl turbulenceadvanced
float·not set by default·> 0
Working CFL for the turbulence transport equations (the conserved-variable slots beyond the 5 mean-flow equations — SA: 1, SST: 2). The solver uses it directly as the pseudo-time CFL for those equations, not as a cap. Has no effect when no turbulence model is active (euler, laminar viscous, non-hybrid LES).
Used indpw
Guidance: Choosing a time-marching scheme →cfl coarseadvanced
float·not set by default·> 0·'cfl coarse' only applies when solver.numerical scheme.multigrid is set
CFL number for multigrid coarse levels
Used incanopy
Guidance: Choosing a time-marching scheme →cfl viscous factoradvanced
float·not set by default·> 0
CFL viscous factor
Used incylinder
Guidance: Choosing a time-marching scheme →