[yangzhou]

Hello everyone,

I want to generate irregular wave by using waveFoam, but the result isn't satisfying.It looks a little bit smaller than I expected(Hs/2=0.046/2=0.023m ).And there is some kind of severe reduction(0.02m to 0.015m) in the working zone.Can anyone guide me why this would happen.
Screenshot from 2017-07-19 13-41-12.png

This is the waveproperties.input file

seaLevel    0.00;
// A list of the relaxation zones in the simulation. The parameters are given// in <name>Coeffs below.relaxationNames (inlet outlet);
initializationName outlet;
inletCoeffs
{

      //set wave type
       waveType irregular;

      //set spectrum
      spectrum JONSWAP;

      //Ramp time of 2s
      Tsoft 3;

      //water depth
      depth 0.7;

      //wave numbers
      N 151;

       // Phase shift in the wave
      phi 0.000000;

      // Wave number vector, k.
       direction  (1.0 0.0 0.0);

      //phase method
       phaseMethod   randomPhase;

      //significant wave height
        Hs 0.046;

      //peak wave period
       Tp 1.2;

       //peak inhancement factor
       gamma     2.5;

       //default coefficient
       stokesDrift 0;

       debug    true;

        frequencyAxis    
        {
            writeSpectrum false; // false = default value
            discretisation equidistantFrequencyAxis; // cosineStretchedFrequencyAxis;
            lowerFrequencyCutoff 1/3; // Not required. Default: 1/3fp
            upperFrequencyCutoff 3;   // Not required. Default: 3fp    
        }

The controlDict

application interFoam;
startFrom latestTime;
startTime 0;
stopAt endTime;
endTime 20;
deltaT 0.0004;
writeControl adjustableRunTime;
writeInterval 0.5;
purgeWrite 0;
writeFormat ascii;
writePrecision 6;
writeCompression uncompressed;
timeFormat general;
timePrecision 6;
runTimeModifiable yes;
adjustTimeStep yes;
maxCo 0.2;
maxAlphaCo 0.3;
maxDeltaT 1;
 functions
{
    #includeIfPresent "../waveGaugesNProbes/surfaceElevationAnyName_controlDict";

}

Also, it seems different gamma in the JONSWAP spectrum could cause the the different degree of reduction in the working area(the smaller the gamma is , the reduction goes to be little).

Any tips would be helpful! Thanks a lot!

Wish you best luck in your researching areas,

Yang