Hi all,
In the benchmark test of overland flow, I noticed there are two types of source terms: a normal depth (NORMALDEPTH) sink term and a critical depth (CRITICALDEPTH) sink term. But I’m not sure how to set the parameters. I request everyone to help me explain the meaning of the parameters, especially the meaning represented by the numbers below.
The following is the input file for the benchmark test. These benchmark tests can all be found in the overland flow benchmark test of OGS 5.8 version. I sincerely request everyone’s help.
gian_quad.st:
#SOURCE_TERM
$PCS_TYPE
OVERLAND_FLOW
$PRIMARY_VARIABLE
HEAD
$GEO_TYPE
SURFACE SFCTOP
$DIS_TYPE
CONSTANT_NEUMANN 1.0
$TIM_TYPE
CURVE 1
#SOURCE_TERM
$PCS_TYPE
OVERLAND_FLOW
$PRIMARY_VARIABLE
HEAD
$GEO_TYPE
POLYLINE CRITICALDEPTH
$DIS_TYPE
CRITICALDEPTH 1
0.0
#STOP
govin_quad.st:
#SOURCE_TERM
$PCS_TYPE
OVERLAND_FLOW
$PRIMARY_VARIABLE
HEAD
$GEO_TYPE
SURFACE UP
$DIS_TYPE
CONSTANT_NEUMANN 4.e-3
#SOURCE_TERM
$PCS_TYPE
OVERLAND_FLOW
$PRIMARY_VARIABLE
HEAD
$GEO_TYPE
POLYLINE: NORMALDEPTH
$DIS_TYPE
NORMALDEPTH 1
0.01 0.0
#STOP