Required Cards:

TIMESTEPPER <string>

Specifies timestepper for flow or transport (i.e. FLOW or TRANSPORT).

Optional Cards:

NUM_STEPS_AFTER_CUT <int>

Number of time steps after a time step cut that the time step size must be held constant

MAX_STEPS <int>

Maximum time step after which the simulation will be terminated

TS_ACCELERATION <int>

Integer indexing time step acceleration ramp (expert users only)

MAX_TS_CUTS <int>

Maximum number of consecutive time step cuts before the simulation is terminated with plot of the current solution printed to a XXX_cut_to_failure.tec file for debugging.

TIMESTEP_REDUCTION_FACTOR <float>

Scaling factor by which the time step is reduced when the time step is cut.

DT_FACTOR <float array>

Array of floating point numbers of tfac array (expert users only)

INITIALIZE_TO_STEADY_STATE

Flag requesting that a steady state solution be computed based on boundary and initial conditions at the beginning of the simulation (Warning: not robust)

RUN_AS_STEADY_STATE

Flag indicating that the simulation is to be run as steady state (Warning: not robust)

Examples

TIMESTEPPER
  TS_ACCELERATION 8
  MAX_STEPS 10000  ! terminates simulation after 10,000 time steps
  MAX_TS_CUTS 5    ! terminates simulation after 5 consecutive time step cuts
END