Dear [name removed]
The following files are my modeling files. I have experienced excessive erosion and deposition during modeling. Could you please help me check and give some suggestions for modification?
Best regards
/------------------------------------------------------------------/
/ Gaia in TELEMAC Version v8p4
/ GAIA STEERING FILE
/------------------------------------------------------------------/
/
/------------------------------------------------------------------/
/ COMPUTATION ENVIRONMENT
/------------------------------------------------------------------/
/
BOUNDARY CONDITIONS FILE : geo_jwhyuanshihd_QHBC.cli
GEOMETRY FILE :geo_yuanshihedao.slf
RESULTS FILE : rGaia-steady2d.slf
VARIABLES FOR GRAPHIC PRINTOUTS : B,E,M,MU,N,P,QSBL,TOB
MASS-BALANCE : YES
/ DEBUGGER : 0 / optionally enable
/
/ NUMERICAL OPTIONS
/------------------------------------------------------------------/
FINITE VOLUMES : YES
/------------------------------------------------------------------/
/
/------------------------------------------------------------------/
/ RIVERBED COMPOSITION
/------------------------------------------------------------------/
/
/ SEDIMENT
CLASSES TYPE OF SEDIMENT : NCO;NCO;NCO / CO-cohesive or NCO-non-cohesive
CLASSES SEDIMENT DIAMETERS : 0.0005;0.02;0.1 / in m
CLASSES SEDIMENT DENSITY : 2680;2680;2680 / in kg per m3
/
/ RIVERBED LAYERS - manual section 3.2.1
ACTIVE LAYER THICKNESS : 0.1 / multiple of D90 - default is 10000
NUMBER OF LAYERS FOR INITIAL STRATIFICATION : 3 / default is 1
LAYERS INITIAL THICKNESS : 100 / m - default is 100
/
/------------------------------------------------------------------/
/ BEDLOAD
/------------------------------------------------------------------/
/
/ BOUNDARIES
PRESCRIBED SOLID DISCHARGES : 0.;0.
/
BED LOAD FOR ALL [name removed] : YES / deactivate with NO
BED-LOAD TRANSPORT FORMULA FOR ALL [name removed] : 1 / MPM - see table for more
CLASSES SHIELDS PARAMETERS : 0.01;0.01;0.01
MPM COEFFICIENT : 8
/
/ BEDLOAD DIRECTION - manual sec. 3.1.4-3.1.7
SLOPE EFFECT : 1 / default is 1 - enabled
FORMULA FOR DEVIATION : 2 / use 2 for talmon-1995 approach
PARAMETER FOR DEVIATION : 1.6 / default is 0.85 - requires deviation formula 2
FORMULA FOR SLOPE EFFECT : 2 / default is 1 (koch-flokstra) change to 2 for soulsby
/ BETA : 1.3 / only with [name removed]-flokstra - default is 1.3
/ FRICTION ANGLE OF THE SEDIMENT : 20. / only with soulsby - default is 40.0 degrees
/
/ SECONDARY CURRENTS - manual sec. 3.1.7
SECONDARY CURRENTS : YES / default is no
SECONDARY CURRENTS ALPHA COEFFICIENT : 0.75 / default is 1.
/
/ FRICTION
SKIN FRICTION CORRECTION : 1 / set 0 to disable correction in shallow waters
RATIO BETWEEN SKIN FRICTION AND MEAN DIAMETER = 1. / NEW
/ BEDFORM FRICTION FOR SANDS - manual section 3.1.8
COMPUTE BED ROUGHNESS AT SEDIMENT SCALE : YES / default is NO
BED ROUGHNESS PREDICTOR OPTION : 3 / default is 1
/
/------------------------------------------------------------------/
/ SUSPENDED LOAD
/------------------------------------------------------------------/
/
SUSPENSION FOR ALL [name removed] : YES / deactivate with NO
/
/ INITIAL AND BOUNDARY CONDITIONS - manual sec. 2.1.1+2
/ INITIAL SUSPENDED SEDIMENTS CONCENTRATION VALUES : 1.E-04;0.;0.
/ PRESCRIBED SUSPENDED SEDIMENTS CONCENTRATION VALUES : 1.E-04;0.;0.
/ EQUILIBRIUM INFLOW CONCENTRATION : YES / overwrites initial values at boundaries - only when CBOR bc is 0
/
/ FORMULA
SUSPENSION TRANSPORT FORMULA FOR ALL [name removed] : 1
/
/ NUMERICAL PARAMETERS
SCHEME FOR ADVECTION OF SUSPENDED SEDIMENTS : 14
/ CONTINUITY CORRECTION : YES / use when SCHEME is 4 or 14
/ CORRECTION ON CONVECTION VELOCITY : YES / enable in deep waters
/
/ ADDITIONAL SEDIMENT - manual section 4.2
CLASSES SETTLING VELOCITIES : -9;-9;-9 / use Gaia defaults
CLASSES CRITICAL SHEAR STRESS FOR MUD DEPOSITION : 1000;1000;1000 / N per m2
LAYERS PARTHENIADES CONSTANT : 1.E-03 / in kg per m2 per s - default is 1.E-03
/ LAYERS CRITICAL EROSION SHEAR STRESS OF THE MUD : 0.01;0.1;0.1 / in N per m2
/
gaia-morphodynamicsnew.cas (3.68 KB)
geo_jwhyuanshihd_BC.cli (46.7 KB)
geo_yuanshihedao.slf (140 KB)
steady2d-gaia.cas (5.27 KB)