File size: 10,289 Bytes
5154c4e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | ------- SeaState Input File ----------------------------------------------------
NREL 5.0 MW offshore baseline floating platform HydroDyn input properties for the OC4 Semi-submersible.
False Echo - Echo the input file data (flag)
---------------------- ENVIRONMENTAL CONDITIONS --------------------------------
"default" WtrDens - Water density (kg/m^3)
"default" WtrDpth - Water depth (meters) relative to MSL
"default" MSL2SWL - Offset between still-water level and mean sea level (meters) [positive upward; unused when WaveMod = 6; must be zero if PotMod=1 or 2]
---------------------- SPATIAL DISCRETIZATION ---------------------------------------------------
60 X_HalfWidth – Half-width of the domain in the X direction (m) [>0, NOTE: X[nX] = nX*dX, where nX = {-NX+1,-NX+2,…,NX-1} and dX = X_HalfWidth/(NX-1)]
60 Y_HalfWidth – Half-width of the domain in the Y direction (m) [>0, NOTE: Y[nY] = nY*dY, where nY = {-NY+1,-NY+2,…,NY-1} and dY = Y_HalfWidth/(NY-1)]
30 Z_Depth – Depth of the domain the Z direction (m) relative to SWL [0 < Z_Depth <= WtrDpth+MSL2SWL; "default": Z_Depth = WtrDpth+MSL2SWL; Z[nZ] = ( COS( nZ*dthetaZ ) – 1 )*Z_Depth, where nZ = {0,1,…NZ-1} and dthetaZ = pi/( 2*(NZ-1) )]
6 NX – Number of nodes in half of the X-direction domain (-) [>=2]
6 NY – Number of nodes in half of the Y-direction domain (-) [>=2]
20 NZ – Number of nodes in the Z direction (-) [>=2]
---------------------- WAVES ---------------------------------------------------
3 WaveMod - Incident wave kinematics model {0: none=still water, 1: regular (periodic), 1P#: regular with user-specified phase, 2: JONSWAP/Pierson-Moskowitz spectrum (irregular), 3: White noise spectrum (irregular), 4: user-defined spectrum from routine UserWaveSpctrm (irregular), 5: Externally generated wave-elevation time series, 6: Externally generated full wave-kinematics time series, 7: wave frequency components [option 6 is invalid for PotMod/=0]} (switch)
0 WaveStMod - Model for stretching incident wave kinematics to instantaneous free surface {0: none=no stretching, 1: vertical stretching, 2: extrapolation stretching, 3: Wheeler stretching} (switch)
0 WvCrntMod - Combined wave-current modeling option {0: simple superposition, 1: include Doppler effect, 2: include both Doppler effect and wave amplitude/spectrum scaling} (switch) [unused when WaveMod=0 or WaveMod=6. Also unused when there is no current from SeaState (CurrMod=0) or from InflowWind if MHK.]
600 WaveTMax - Analysis time for incident wave calculations (sec) [unused when WaveMod=0; determines WaveDOmega=2Pi/WaveTMax in the IFFT]
0.125 WaveDT - Time step for incident wave calculations (sec) [unused when WaveMod=0 or 7; 0.1<=WaveDT<=1.0 recommended; determines WaveOmegaMax=Pi/WaveDT in the IFFT]
1.788414471 WaveHs - Significant wave height of incident waves (meters) [used only when WaveMod=1, 2, or 3]
10 WaveTp - Peak-spectral period of incident waves (sec) [used only when WaveMod=1 or 2]
"DEFAULT" WavePkShp - Peak-shape parameter of incident wave spectrum (-) or DEFAULT (string) [used only when WaveMod=2; use 1.0 for Pierson-Moskowitz]
0.314159 WvLowCOff - Low cut-off frequency or lower frequency limit of the wave spectrum beyond which the wave spectrum is zeroed (rad/s) [unused when WaveMod=0, 1, 6, or 7]
1.570796 WvHiCOff - High cut-off frequency or upper frequency limit of the wave spectrum beyond which the wave spectrum is zeroed (rad/s) [unused when WaveMod=0, 1, 6, or 7]
0 WaveDir - Incident wave propagation heading direction (degrees) [unused when WaveMod=0, 6 or 7]
0 WaveDirMod - Directional spreading function {0: none, 1: COS2S} (-) [only used when WaveMod=2,3, or 4; must be 0 if WvCrntMod/=0]
1 WaveDirSpread - Wave direction spreading coefficient ( > 0 ) (-) [only used when WaveMod=2,3, or 4 and WaveDirMod=1]
1 WaveNDir - Number of wave directions (-) [only used when WaveMod=2,3, or 4 and WaveDirMod=1; odd number only]
0 WaveDirRange - Range of wave directions (full range: WaveDir +/- 1/2*WaveDirRange) (degrees) [only used when WaveMod=2,3,or 4 and WaveDirMod=1]
123456789 WaveSeed(1) - First random seed of incident waves [-2147483648 to 2147483647] (-) [unused when WaveMod=0, 5, or 6]
"RANLUX" WaveSeed(2) - Second random seed of incident waves [-2147483648 to 2147483647] for intrinsic pRNG, or an alternative pRNG: "RanLux" (-) [unused when WaveMod=0, 5, or 6]
FALSE WaveNDAmp - Flag for normally distributed amplitudes (flag) [only used when WaveMod=2, 3, or 4]
"" WvKinFile - Root name of externally generated wave data file(s) (quoted string) [used only when WaveMod=5, 6 or 7]
---------------------- 2ND-ORDER WAVES ----------------------------------------- [unused with WaveMod=0 or 6]
FALSE WvDiffQTF - Full difference-frequency 2nd-order wave kinematics (flag) [Must be false if WvCrntMod/=0]
FALSE WvSumQTF - Full summation-frequency 2nd-order wave kinematics (flag) [Must be false if WvCrntMod/=0]
0 WvLowCOffD - Low frequency cutoff used in the difference-frequencies (rad/s) [Only used with a difference-frequency method]
1.256637 WvHiCOffD - High frequency cutoff used in the difference-frequencies (rad/s) [Only used with a difference-frequency method]
0.618319 WvLowCOffS - Low frequency cutoff used in the summation-frequencies (rad/s) [Only used with a summation-frequency method]
3.141593 WvHiCOffS - High frequency cutoff used in the summation-frequencies (rad/s) [Only used with a summation-frequency method]
---------------------- CONSTRAINED WAVES ---------------------------------------
0 ConstWaveMod - Constrained wave model: 0=none; 1=Constrained wave with specified crest elevation, alpha; 2=Constrained wave with guaranteed peak-to-trough crest height, HCrest (flag)
1 CrestHmax - Crest height (2*alpha for ConstWaveMod=1 or HCrest for ConstWaveMod=2), must be larger than WaveHs (m) [unused when ConstWaveMod=0]
60 CrestTime - Time at which the crest appears (s) [unused when ConstWaveMod=0]
0 CrestXi - X-position of the crest (m) [unused when ConstWaveMod=0]
0 CrestYi - Y-position of the crest (m) [unused when ConstWaveMod=0]
---------------------- CURRENT ------------------------------------------------- [unused with WaveMod=6]
0 CurrMod - Current profile model {0: none=no current, 1: standard, 2: user-defined from routine UserCurrent} (switch)
0 CurrSSV0 - Sub-surface current velocity at still water level (m/s) [used only when CurrMod=1]
"DEFAULT" CurrSSDir - Sub-surface current heading direction (degrees) or DEFAULT (string) [used only when CurrMod=1]
20 CurrNSRef - Near-surface current reference depth (meters) [used only when CurrMod=1]
0 CurrNSV0 - Near-surface current velocity at still water level (m/s) [used only when CurrMod=1]
0 CurrNSDir - Near-surface current heading direction (degrees) [used only when CurrMod=1]
0 CurrDIV - Depth-independent current velocity (m/s) [used only when CurrMod=1]
0 CurrDIDir - Depth-independent current heading direction (degrees) [used only when CurrMod=1]
---------------------- MacCamy-Fuchs diffraction model -------------------------
0 MCFD - MacCamy-Fuchs member radius (ignored if radius <= 0) [must be 0 when WaveMod 0 or 6]
---------------------- OUTPUT --------------------------------------------------
False SeaStSum - Output a summary file [flag]
2 OutSwtch - Output requested channels to: [1=SeaState.out, 2=GlueCode.out, 3=both files]
"G0" OutFmt - Output format for numerical results (quoted string) [not checked for validity!]
"A11" OutSFmt - Output format for header strings (quoted string) [not checked for validity!]
2 NWaveElev - Number of points where the incident wave elevations can be computed (-) [maximum of 9 output locations]
0, -18.4752 WaveElevxi - List of xi-coordinates for points where the incident wave elevations can be output (meters) [NWaveElev points, separated by commas or white space; usused if NWaveElev = 0]
0, -6 WaveElevyi - List of yi-coordinates for points where the incident wave elevations can be output (meters) [NWaveElev points, separated by commas or white space; usused if NWaveElev = 0]
2 NWaveKin - Number of points where the wave kinematics can be output (-) [maximum of 9 output locations]
14.43376, -18.4752 WaveKinxi - List of xi-coordinates for points where the wave kinematics can be output (meters) [NWaveKin points, separated by commas or white space; usused if NWaveKin = 0]
25, -6 WaveKinyi - List of yi-coordinates for points where the wave kinematics can be output (meters) [NWaveKin points, separated by commas or white space; usused if NWaveKin = 0]
-14, -17 WaveKinzi - List of zi-coordinates for points where the wave kinematics can be output (meters) [NWaveKin points, separated by commas or white space; usused if NWaveKin = 0]
---------------------- OUTPUT CHANNELS -----------------------------------------
"Wave1Elev"
END of output channels and end of file. (the word "END" must appear in the first 3 columns of this line)
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