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PFLOTRAN User Manual
7.3.5
§7.3.5
August 14, 2015
PFLOTRAN Input File
Listing for the PFLOTRAN input file coupling Richards mode to a tracer is given below. Note that
the stratigraphic zone specification in REGION is grid independent as is the grid size specification
in keyword GRID. Therefore to change the grid spacing only the line: NXYZ 1 1 136, needs to
be changed. Also note that lines beginning with # are read as a comment as is input following ‘!’.
Note that the input file looks for the RESTART file for the transient run in the subdirectory:
./ss/sx115-restart.chk.
PFLOTRAN input file sx115.in:
#Description: 1D test problem for tracer transport for Hanford SX-115 waste tank.
SIMULATION
SIMULATION_TYPE SUBSURFACE
PROCESS_MODELS
SUBSURFACE_FLOW flow
MODE RICHARDS
/
SUBSURFACE_TRANSPORT transport
GLOBAL_IMPLICIT
/
/
END
SUBSURFACE
#=========================== chemistry ========================================
CHEMISTRY
PRIMARY_SPECIES
Tracer
/
OUTPUT
all
FREE_ION
/
END
#=========================== runtime ==========================================
#CHECKPOINT 100000
RESTART ./ss/sx115-restart.chk 0.d0
#OVERWRITE_RESTART_TRANSPORT
#WALLCLOCK_STOP 11.75
#=========================== solver options ===================================
TIMESTEPPER FLOW
#MAX_STEPS -1
TS_ACCELERATION 8
INITIALIZE_TO_STEADY_STATE 1.d0
END
NEWTON_SOLVER FLOW
#RTOL 1.d-12
RTOL 1.d-20
#ATOL 1.d-12
#STOL 1.e-60
#DTOL 1.e4
ITOL_UPDATE 1.d0
#NO_INFINITY_NORM
#NO_PRINT_CONVERGENCE
#PRINT_DETAILED_CONVERGENCE
END
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