------- AERODYN for OpenFAST INPUT FILE -------------------------------------------------------------
Description line that will be printed in the output file and written to the screen.
====== General Options ============================================================================
False Echo - Echo the input to “.AD.ech”? (flag)
“default” DTAero - Time interval for aerodynamic calculations {or “default”} (s)
1 Wake_Mod - Wake/induction model (switch) {0=none, 1=BEMT, 3=OLAF} [Wake_Mod cannot be 2 or 3 when linearizing]
0 TwrPotent - Type tower influence on wind based on potential flow around the tower (switch) {0=none, 1=baseline potential flow, 2=potential flow with Bak correction}
0 TwrShadow - Calculate tower influence on wind based on downstream tower shadow (switch) {0=none, 1=Powles model, 2=Eames model}
False TwrAero - Calculate tower aerodynamic loads? (flag)
False CavitCheck - Perform cavitation check? (flag) [UA_Mod must be 0 when CavitCheck=true]
False Buoyancy - Include buoyancy effects? (flag)
False NacelleDrag - Include Nacelle Drag effects? (flag)
False CompAA - Flag to compute AeroAcoustics calculation [used only when Wake_Mod = 1 or 2]
“unused” AA_InputFile - AeroAcoustics input file [used only when CompAA=true]
====== Environmental Conditions ===================================================================
1.225 AirDens - Air density (kg/m^3)
1.4639E-05 KinVisc - Kinematic viscosity of working fluid (m^2/s)
335 SpdSound - Speed of sound in working fluid (m/s)
103500 Patm - Atmospheric pressure ¶ [used only when CavitCheck=True]
170 Pvap - Vapour pressure of working fluid ¶ [used only when CavitCheck=True]
====== Blade-Element/Momentum Theory Options ====================================================== [unused when Wake_Mod=0 or 3, except for BEM_Mod]
1 BEM_Mod - BEM model {1=legacy NoSweepPitchTwist, 2=polar} (switch) [used for all Wake_Mod to determine output coordinate system]
— Skew correction
1 Skew_Mod - Skew model {0=No skew model, -1=Remove non-normal component for linearization, 1=skew model active}
True SkewMomCorr - Turn the skew momentum correction on or off [used only when Skew_Mod=1]
1 SkewRedistr_Mod - Type of skewed-wake correction model (switch) {0=no redistribution, 1=Glauert/Pitt/Peters, default=1} [used only when Skew_Mod=1]
“default” SkewRedistrFactor - Constant used in Pitt/Peters skewed wake model {or “default” is 15/32*pi} (-) [used only when Skew_Mod=1 and SkewRedistr_Mod=1]
— BEM algorithm
False TipLoss - Use the Prandtl tip-loss model? (flag) [unused when Wake_Mod=0 or 3]
False HubLoss - Use the Prandtl hub-loss model? (flag) [unused when Wake_Mod=0 or 3]
True TanInd - Include tangential induction in BEMT calculations? (flag) [unused when Wake_Mod=0 or 3]
True AIDrag - Include the drag term in the axial-induction calculation? (flag) [unused when Wake_Mod=0 or 3]
False TIDrag - Include the drag term in the tangential-induction calculation? (flag) [unused when Wake_Mod=0,3 or TanInd=FALSE]
“Default” IndToler - Convergence tolerance for BEMT nonlinear solve residual equation {or “default”} (-) [unused when Wake_Mod=0 or 3]
100 MaxIter - Maximum number of iteration steps (-) [unused when Wake_Mod=0]
— Shear correction
False SectAvg - Use sector averaging (flag)
1 SectAvgWeighting - Weighting function for sector average {1=Uniform, default=1} within a sector centered on the blade (switch) [used only when SectAvg=True]
default SectAvgNPoints - Number of points per sectors (-) {default=5} [used only when SectAvg=True]
default SectAvgPsiBwd - Backward azimuth relative to blade where the sector starts (<=0) {default=-60} (deg) [used only when SectAvg=True]
default SectAvgPsiFwd - Forward azimuth relative to blade where the sector ends (>=0) {default=60} (deg) [used only when SectAvg=True]
— Dynamic wake/inflow
2 DBEMT_Mod - Type of dynamic BEMT (DBEMT) model {0=No Dynamic Wake, -1=Frozen Wake for linearization, 1:constant tau1, 2=time-dependent tau1, 3=constant tau1 with continuous formulation} (-)
20 tau1_const - Time constant for DBEMT (s) [used only when DBEMT_Mod=1 or 3]
====== OLAF – cOnvecting LAgrangian Filaments (Free Vortex Wake) Theory Options ================== [used only when Wake_Mod=3]
“unused” OLAFInputFileName - Input file for OLAF [used only when Wake_Mod=3]
====== Unsteady Airfoil Aerodynamics Options ====================================================
True AoA34 - Sample the angle of attack (AoA) at the 3/4 chord or the AC point {default=True} [always used]
4 UA_Mod - Unsteady Aero Model Switch (switch) {0=Quasi-steady (no UA), 2=B-L Gonzalez, 3=B-L Minnema/Pierce, 4=B-L HGM 4-states, 5=B-L HGM+vortex 5 states, 6=Oye, 7=Boeing-Vertol}
True FLookup - Flag to indicate whether a lookup for f’ will be calculated (TRUE) or whether best-fit exponential equations will be used (FALSE); if FALSE S1-S4 must be provided in airfoil input files (flag) [used only when UA_Mod=2 or UA_Mod=3]
1 IntegrationMethod - Switch to indicate which integration method UA uses (1=RK4, 2=AB4, 3=ABM4, 4=BDF2)
0.3 UAStartRad - Starting radius for dynamic stall (fraction of rotor radius [0.0,1.0]) [used only when UA_Mod>0; if line is missing UAStartRad=0]
1 UAEndRad - Ending radius for dynamic stall (fraction of rotor radius [0.0,1.0]) [used only when UA_Mod>0; if line is missing UAEndRad=1]
====== Airfoil Information =========================================================================
1 AFTabMod - Interpolation method for multiple airfoil tables {1=1D interpolation on AoA (first table only); 2=2D interpolation on AoA and Re; 3=2D interpolation on AoA and UserProp} (-)
1 InCol_Alfa - The column in the airfoil tables that contains the angle of attack (-)
2 InCol_Cl - The column in the airfoil tables that contains the lift coefficient (-)
3 InCol_Cd - The column in the airfoil tables that contains the drag coefficient (-)
4 InCol_Cm - The column in the airfoil tables that contains the pitching-moment coefficient; use zero if there is no Cm column (-)
0 InCol_Cpmin - The column in the airfoil tables that contains the Cpmin coefficient; use zero if there is no Cpmin column (-)
41 NumAFfiles - Number of airfoil files used (-)
AFNames - Airfoil file names (NumAFfiles lines) (quoted strings)
====== Rotor/Blade Properties =====================================================================
False UseBlCm - Include aerodynamic pitching moment in calculations? (flag)
“AeroDyn_blade.dat” ADBlFile(1) - Name of file containing distributed aerodynamic properties for Blade #1 (-)
“AeroDyn_blade.dat” ADBlFile(2) - Name of file containing distributed aerodynamic properties for Blade #2 (-) [unused if NumBl < 2]
“AeroDyn_blade.dat” ADBlFile(3) - Name of file containing distributed aerodynamic properties for Blade #3 (-) [unused if NumBl < 3]
====== Hub Properties ============================================================================== [used only when Buoyancy=True]
0 VolHub - Hub volume (m^3)
0 HubCenBx - Hub center of buoyancy x direction offset (m)
====== Nacelle Properties ========================================================================== [used only when Buoyancy=True or NacelleDrag=True]
0 VolNac - Nacelle volume (m^3)
0, 0, 0 NacCenB - Position of nacelle center of buoyancy from yaw bearing in nacelle coordinates (m)
0, 0, 0 NacArea - Projected area of the nacelle in X, Y, Z in the nacelle coordinate system (m^2)
0, 0, 0 NacCd - Drag coefficient for the nacelle areas defined above (-)
0, 0, 0 NacDragAC - Position of aerodynamic center of nacelle drag in nacelle coordinates (m)
====== Tail Fin Aerodynamics =======================================================================
False TFinAero - Calculate tail fin aerodynamics model (flag)
“unused” TFinFile - Input file for tail fin aerodynamics [used only when TFinAero=True]
====== Tower Influence and Aerodynamics ============================================================ [used only when TwrPotent/=0, TwrShadow/=0, TwrAero=True, or Buoyancy=True]
46 NumTwrNds - Number of tower nodes used in the analysis (-) [used only when TwrPotent/=0, TwrShadow/=0, TwrAero=True, or Buoyancy=True]
TwrElev TwrDiam TwrCd TwrTI TwrCb ! TwrTI used only when TwrShadow=2; TwrCb used only when Buoyancy=True
(m) (m) (-) (-) (-)
====== Outputs ====================================================================================
True SumPrint - Generate a Model_mmary file listing input options and interpolated properties to “.AD.Model_m”? (flag)
4 NBlOuts - Number of blade node outputs [0 - 9] (-)
1, 3, 4, 6 BlOutNd - Blade nodes whose values will be output (-)
0 NTwOuts - Number of tower node outputs [0 - 9] (-)
1 TwOutNd - Tower nodes whose values will be output (-)
OutList - The next line(s) contains a list of output parameters. See OutListParameters.xlsx for a listing of available output channels, (-)
“B1N1VDisx, B1N1VDisy, B1N1VDisz” ! disturbed wind velocity at Blade 1, Node 1
“B1N2VDisx, B1N2VDisy, B1N2VDisz” ! disturbed wind velocity at Blade 1, Node 2
“B1N3VDisx, B1N3VDisy, B1N3VDisz” ! disturbed wind velocity at Blade 1, Node 3
“B1N1STVx, B1N1STVy, B1N1STVz” ! structural translational velocity at Blade 1, Node 1
“B1N2STVx, B1N2STVy, B1N2STVz” ! structural translational velocity at Blade 1, Node 2
“B1N3STVx, B1N3STVy, B1N3STVz” ! structural translational velocity at Blade 1, Node 2
“RtSpeed, RtSkew, B1Azimuth”
“B1N1AxInd, B1N2AxInd, B1N3AxInd”
“B1N1Alpha, B1N2Alpha, B1N3Alpha”
“B1N1Theta, B1N2Theta, B1N3Theta”
“B1N1Alpha”
“B1N2Alpha”
“B1N3Alpha”
“B1N4Alpha”
“B1N5Alpha”
“B1N6Alpha”
“B1N7Alpha”
“B1N8Alpha”
“B1N9Alpha”
“B1N1Cl”
“B1N2Cl”
“B1N3Cl”
“B1N4Cl”
“B1N5Cl”
“B1N6Cl”
“B1N7Cl”
“B1N8Cl”
“B1N9Cl”
“B1N1Cd”
“B1N2Cd”
“B1N3Cd”
“B1N4Cd”
“B1N5Cd”
“B1N6Cd”
“B1N7Cd”
“B1N8Cd”
“B1N9Cd”
“B1Pitch”
“B1Azimuth”
“B2Azimuth”
“B3Azimuth”
“RtAeroCp”
“RtAeroCt”
“RtTSR”
“RtAeroPwr”
END of OutList section (the word “END” must appear in the first 3 columns of the last OutList line)
====== Outputs for all blade stations (same ending as above for B1N1… =========================== [optional section]
1 BldNd_BladesOut - Number of blades to output all node information at. Up to number of blades on turbine. (-)
“All” BldNd_BlOutNd - Specify a portion of the nodes to output. {“ALL”, “Tip”, “Root”, or a list of node numbers} (-)
OutList_Nodal - The next line(s) contains a list of output parameters. See OutListParameters.xlsx for a listing of available output channels, (-)
“Fx, Fy”
“Vx, Vy”
“Vrel”
“TnInd”
“AxInd”
“Theta”
“Phi”
“Vindx”
“Vindy”
“Alpha”
