Appendix D1-Model Parameters

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project

APPENDIX D1 Model Parameters The following are excerpts from the input files used in the calibrated model simulations. For brevity, this list is not intended to be all inclusive. It contains general model setup information, parameters which are typically modified for calibration purposes, as well as, details regarding model features beyond the default settings which were employed.

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
Typical FLOW input file (*.mdf)
Filcco = #../grd/grid_spm_revOI_refined4Morph.grd#
Anglat = 3.4000000e+001
Grdang = 0.0000000e+000
Filgrd = #../grd/grid_spm_revOI_refined4Morph.enc#
MNKmax = 714 1727 1
Thick = 1.0000000e+002
Commnt =
Fildep = #../grd/grid_spm_revOI_refined4Morph_FWOP.dep#
Commnt =
Commnt = no. dry points: 0
Commnt = no. thin dams: 0
Commnt =
Itdate = #2017-01-01#
Tunit = #M#
Tstart = 0.0000000e+000
Tstop = 5.0400000e+004
Dt = 0.025
Tzone = 0
Commnt =
Sub1 = # #
Sub2 = # #
Commnt =
Wnsvwp = #N#
Wndint = #Y#
Commnt =
Zeta0 = 0.0000000e+000
Commnt =
Commnt = no. open boundaries: 7
Filbnd = #../bc/bc_offshore/bc_offshore_2d.bnd#
FilbcT = #../bc/bc_upstream/bc_upstream_2d_AnnualAverageFlows.bct#
Filana = #../bc/bc_offshore/bc_offshore_2d.bca#
Filcor = #../bc/bc_offshore/bc_offshore_2d.cor#
Commnt =
Ag = 9.8100000e+000
Rhow = 1.0000000e+003
Tempw = 1.5000000e+001
Salw = 3.1000000e+001
Wstres = 6.3000000e-004 0.0000000e+000 7.2300000e-003 1.0000000e+002 7.2300000e-003 1.0000000e+002
Rhoa = 1.0000000e+000
Betac = 5.0000000e-001
Equili = #N#
Ktemp = 0
Fclou = 0.0000000e+000
Sarea = 0.0000000e+000
Temint = #Y#
Commnt =
Roumet = #M#
Filrgh = #../rgh/sp_var_v5_refine0705_refined4MorphGrid.rgh#
Xlo = 0.0000000e+000

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
Vicouv = 1.0000000e+000
Dicouv = 1.0000000e-001
Htur2d = #N#
Irov = 0
Commnt =
Iter = 2
Dryflp = #YES#
Dpsopt = #MEAN#
Dpuopt = #MOR#
Dryflc = 1.0000000e-001
Dco = -9.9900000e+002
Tlfsmo = 6.0000000e+001
ThetQH = 0.0000000e+000
Forfuv = #Y#
Forfww = #N#
Sigcor = #N#
Trasol = #Cyclic-method#
Momsol = #Cyclic#
Commnt =
Commnt = no. discharges: 0
Commnt = no. observation points: 114
Filsta = #nesthd_ChannelMorph_rev07.obs#
Commnt = no. drogues: 0
Commnt =
Commnt =
Commnt = no. cross sections: 2
Filcrs = #nesthd_ChannelMorph_rev07.crs#
Commnt =
SMhydr = #YYYYY#
SMderv = #YYYYYY#
SMproc = #YYYYYYYYYY#
PMhydr = #YYYYYY#
PMderv = #YYY#
PMproc = #YYYYYYYYYY#
SHhydr = #YYYY#
SHderv = #YYYYY#
SHproc = #YYYYYYYYYY#
SHflux = #YYYY#
PHhydr = #YYYYYY#
PHderv = #YYY#
PHproc = #YYYYYYYYYY#
PHflux = #YYYY#
Commnt = attribute file fourier analyzed
Filfou = #n01_CFR_residual_currents.fou#
Flmap = 7.2000000e+003 60 5.0400000e+004
Flhis = 0.0000000e+000 0 5.0400000e+004
Flpp = 0.0000000e+000 0 5.0400000e+004
Flrst = 0
Commnt =
Online = #N#
Cstbnd = #YES#

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
Typical WAVE input file (*.mdw)
[General]
ProjectName = Cape Fear River
Description = Offshore wave model
Description = representative waves
Description = 2004-2018comb
FlowFile = b01.mdf
OnlyInputVerify = false
SimMode = stationary
DirConvention = nautical
ReferenceDate = 2017-01-01
WindSpeed = 8.0000001e-001
WindDir = 9.7699997e+001
[Constants]
WaterLevelCorrection = 0.0000000e+000
Gravity = 9.8100004e+000
WaterDensity = 1.0250000e+003
NorthDir = 9.0000000e+001
MinimumDepth = 5.0000001e-002
[Processes]
GenModePhys = 3
Breaking = true
BreakAlpha = 1.0000000e+000
BreakGamma = 7.3000002e-001
Triads = false
TriadsAlpha = 1.0000000e-001
TriadsBeta = 2.2000000e+000
BedFriction = none
Diffraction = false
DiffracCoef = 2.0000000e-001
DiffracSteps = 5
DiffracProp = true
WindGrowth = false
WhiteCapping = Komen
Quadruplets = true
Refraction = true
FreqShift = true
WaveForces = radiation stresses <2013
[Numerics]
DirSpaceCDD = 5.0000000e-001
FreqSpaceCSS = 5.0000000e-001
RChHsTm01 = 4.9999999e-003
RChMeanHs = 4.9999999e-003
RChMeanTm01 = 4.9999999e-003
PercWet = 9.9500000e+001
MaxIter = 50
[Output]
TestOutputLevel = 0
TraceCalls = false
UseHotFile = false
MapWriteInterval = 7.2000000e+002
WriteCOM = true
COMWriteInterval = 7.2000000e+002
[Domain]
Grid = ../grd/Offshore_WAV_rev2_spm.grd
FlowBedLevel = 0
FlowWaterLevel = 0

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
FlowVelocity = 0
FlowWind = 0
BedLevel = ../grd/Offshore_WAV_rev2_spm.dep
DirSpace = circle
NDir = 36
StartDir = 0.0000000e+000
EndDir = 0.0000000e+000
FreqMin = 5.0000001e-002
FreqMax = 1.0000000e+000
NFreq = 24
Output = false
[Domain]
Grid = ../grd/grid_spm_wave_interm_ChannelMorph_rev.grd
FlowBedLevel = 0
FlowWaterLevel = 0
FlowVelocity = 0
FlowWind = 0
BedLevel = ../grd/grid_spm_wave_interm_ChannelMorph_rev_FWOP.dep
DirSpace = circle
NDir = 36
StartDir = 0.0000000e+000
EndDir = 0.0000000e+000
FreqMin = 5.0000001e-002
FreqMax = 1.0000000e+000
NFreq = 24
NestedInDomain = 1
Output = false
[Domain]
Grid = ../grd/grid_spm_ChannelMorph_rev07_wave.grd
FlowBedLevel = 2
FlowWaterLevel = 2
FlowVelocity = 2
FlowWind = 0
BedLevel = ../grd/grid_spm_ChannelMorph_rev07_wave_wTG_FWOP.dep
DirSpace = circle
NDir = 36
StartDir = 0.0000000e+000
EndDir = 0.0000000e+000
FreqMin = 5.0000001e-002
FreqMax = 1.0000000e+000
NFreq = 24
NestedInDomain = 2
Output = true
[Boundary]
Name = offshore
Definition = orientation
Orientation = south
SpectrumSpec = parametric
SpShapeType = jonswap
PeriodType = peak
DirSpreadType = power
PeakEnhanceFac = 3.3000000e+000
GaussSpread = 9.9999998e-003
WaveHeight = 8.0000001e-001
Period = 9.0000000e+000
Direction = 9.7699997e+001
DirSpreading = 1.0000000e+001
[Boundary]

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
Name = Right
Definition = orientation
Orientation = east
SpectrumSpec = parametric
SpShapeType = jonswap
PeriodType = peak
DirSpreadType = power
PeakEnhanceFac = 3.3000000e+000
GaussSpread = 9.9999998e-003
WaveHeight = 8.0000001e-001
Period = 9.0000000e+000
Direction = 9.7699997e+001
DirSpreading = 1.0000000e+001

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
Typical Sediment Description (*.sed)
[SedimentOverall]
Cref = 1.6000000e+003 [kg/m3] CSoil Reference density for hindered settling calculations
IopSus = 0 If Iopsus = 1: susp. sediment size depends on local flow and wave conditions
[Sediment]
Name = #Sediment Sand# Name of sediment fraction
SedTyp = sand Must be "sand", "mud" or "bedload"
RhoSol = 2.6500000e+003 [kg/m3] Specific density
SedDia = 2.5000000e-004 [m] Median sediment diameter (D50)
CDryB = 1.6000000e+003 [kg/m3] Dry bed density
IniSedThick = 5.0000000e+001 [m] Initial sediment layer thickness at bed (uniform value or filename)
FacDSS = 1.0000000e+000 [-] FacDss * SedDia = Initial suspended sediment diameter. Range [0.6 - 1.0]

Town of Oak Island
Jay Bird Shoals Borrow Area Modeling
June 12, 2020

2021/2022 Renourishment Project
Typical Morphology File (*.mor)
[MorphologyFileInformation]
FileCreatedBy = Delft3D FLOW-GUI, Version: 3.59.01.57433
FileCreationDate = Thu Apr 18 2019, 17:22:32
FileVersion = 02.00
[Morphology]
EpsPar = false Vertical mixing distribution according to van Rijn (overrules k-epsilon model)
IopKCW = 1 Flag for determining Rc and Rw
RDC = 0.01 [m] Current related roughness height (only used if IopKCW <> 1)
RDW = 0.02 [m] Wave related roughness height (only used if IopKCW <> 1)
MorFac = 1.0000000e+000 [-] Morphological scale factor
MorStt = 0.0000000e+000 [min] Spin-up interval from TStart till start of morphological changes
Thresh = 5.0000001e-002 [m] Threshold sediment thickness for transport and erosion reduction
MorUpd = false Update bathymetry during FLOW simulation
EqmBc = true Equilibrium sand concentration profile at inflow boundaries
DensIn = false Include effect of sediment concentration on fluid density
AksFac = 1.0000000e+000 [-] van Rijn's reference height = AKSFAC * KS
RWave = 2.0000000e+000 [-] Wave related roughness = RWAVE * estimated ripple height. Van Rijn Recommends
range 1-3
AlfaBs = 1.0000000e+000 [-] Streamwise bed gradient factor for bed load transport
AlfaBn = 1.5000000e+001 [-] Transverse bed gradient factor for bed load transport
WetSlope = 0.2 [-] Avalanching slope sV:1H
AvalTime = 86400.0 [s] Avalanching time in 1 day
Sus = 1.0000000e+000 [-] Multiplication factor for suspended sediment reference concentration
Bed = 1.0000000e+000 [-] Multiplication factor for bed-load transport vector magnitude
SusW = 0.0000000e+000 [-] Wave-related suspended sed. transport factor
BedW = 0.0000000e+000 [-] Wave-related bed-load sed. transport factor
SedThr = 1.0000000e-001 [m] Minimum water depth for sediment computations
ThetSD = 5.0000000e-001 [-] Factor for erosion of adjacent dry cells
HMaxTH = 1.5000000e+000 [m] Max depth for variable THETSD. Set < SEDTHR to use global value only
FWFac = 1.0000000e+000 [-] Vertical mixing distribution according to van Rijn (overrules k-epsilon model)
[Output]
AverageAtEachOutputTime= true