Wave NoCards

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The *.std has a maximum of 24 parameters - the first 15 parameters are more the basic ones as described in the CMS-Wave Technical Report (CHL-TR-08-13) while the remaining 9 parameters are relatively new for advanced CMS-Wave features.

Table 1. CMS-Wave parameters in STD file

Number Variable Argument Type Options/Range Description
1 iprp INTEGER 0 - waves and wind input in *.eng
1 - waves only, neglect wind input in *.eng
-1 - fast mode (wind and spectra)
-2 - fast mode with spectra only.
Wave propagation mode.
2 icur INTEGER 0 - no current input
1 - with current input *.cur
2 -with *.cur, use only the 1st set current data
Current interaction
3 ibk INTEGER 0 - no wave breaking output
1 - output breaking indices
2 - output energy dissipation rate
Wave breaking output option
4 irs INTEGER 0 - no wave radiation stress calculation or output
1 - calculate and output radiation stresses
2 - calculate and output radiation stresses plus setup/max-water-level
Radiation stress and runup options.
5 kout INTEGER >= 0 Number of special wave output location, output spectrum in *.obs

and parameters in selhts.out

6 ibnd INTEGER 0 - no input a parent spectrum *.nst
1 - read *.nst, averaging input spectrum
2 - read *.nst, spatially variable spectrum input
Nesting option.
7 iwet INTEGER 0 - allow wet/dry, default
1 - without wet/dry
-1 allow wet/dry, output swell and local sea files
Wetting and drying options.
8 ibf INTEGER 0 - no bottom friction calc
1 - constant Darcy-Weisbach coef, c_f
2 -read variable c_f file, *.fric
3 - constant Mannings n
4 - read variable Mannings n file, *.fric
Bottom friction option.
9 iark INTEGER 0 - without forward reflection
1 - with forward reflection
Forward reflection option.
10 iarkr INTEGER 0 - without backward reflection,
1 - with backward reflection
backward reflection option.
11 akap REAL 0.0<=akap<=4.0 Diffraction intensity coefficient.
12 bf REAL >=0 constant bottom friction coef c_f or n

(typical value is 0.005 for c_f and 0.025 for Mannings n)

13 ark REAL 0.0<=ark<=1.0 Constant forward reflection coef, global specification
(0 for zero reflection, 1 for full reflection).
14 arkr REAL 0.0<=arkr<=1.0 Constant backward reflection coef, global specification
(0 for zero reflection, 1 for full reflection)
15 iwvbk INTEGER 0 - Goda-extended
1 - Miche-extended
2 - Battjes and Janssen
3 - Chawla and Kirby)
Option for the primary wave breaking formula.
16 nonln INTEGER 0 - none, default
1 - nonlinear wave-wave interaction
Nonlinear wave-wave interaction
17 igrav INTEGER 0 - none, default
1 - infra-gravity wave enter inlets
Infragravity waves option.
18 irunup INTEGER 0 - none, default
1 - automatic, runup relative to absolute datum
2 - automatic, runup relative to updated MWL
Runup option.
19 imud INTEGER 0 - Mud dissipation on, default
1 - none
Mud dissipation option. The kinematic viscosity is specified in mud.dat in units of m2/sec
20 iwnd INTEGER 0 - Spatially variable wind on, default
1 - None
Spatially variable wind field option. The winds are specified in wind.dat in units of m/s
and in the reference frame of the CMS-Wave grid
21 isolv INTEGER 0 - GSR solver, default
1 - ADI
Matrix solver for CMS-Wave.
22 ixmdf INTEGER 0 - output ascii, default
1 - output xmdf
XMDF input and output options.
23 iproc INTEGER >=0 Number of threads for parallel computing. Optimum number is approximately
equal to the total row number divided by 300. Only for isolv = 0.
24 iview INTEGER 0 - half-plane, default
1 - full-plane
2 - full-plane with reverse spectra
Half-plane/full-plane option. users can provide additional input wave
spectrum file wave.spc (same format as the *.eng) along the opposite side

boundary an imaginary origin for wave.spc at the opposite corner; users
can rotate the CMS-Wave grid by 180 deg in SMS to generate this wave.spc


Among these 24 parameters in *.std, the first 6 parameters are always required in CMS-Wave and the remaining ones starting any parameter after the 6th will be assigned to the default values if not provided in the *.std. The more specific use and options associated with each of these 1st to 24th parameters are given below.

  • Full-plane – In this mode, CMS-Wave performs two half-plane runs in the same grid. The first

run is in the half-plane with the principle wave direction toward the shore. The second run is in the seaward half-plane. Upon the completion of the second run, two half-plane results are combined to one full-plane solution. Because the run time for the full-plane is approximately twice of the regular half-plane, users shall consider the full-plane mode only if the full-plane features like wave generation and propagation in a bay or around an island. An example is to run the Shark River wave case, 2009.sim, in the full plane (modify 2009.std).


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