Dear Dan,
I ran the 10MW -198-RWT case for OLAF using ElastoDyn + BeamDyn with the dynamic library of ROSCO 2.9.0. In the AERODYN file, the OLAF section specifies IEA-10.0-198-RWT_OLAF.dat for the OLAFInputFileName parameter => which is used only when WakeMod=3. However, the file IEA-10.0-198-RWT_OLAF.dat is not available in the directory. The simulation works when I use (the code shown below) only ElastoDyn for CompElast.
Q: What parameters should I change to fix the simulation error for the case when CompElast = 2?
Best regards,
Dereje
--------------------------- OLAF (cOnvecting LAgrangian Filaments) INPUT FILE -----------------
Free wake input file for the Helix test case
--------------------------- GENERAL OPTIONS ---------------------------------------------------
default IntMethod Integration method {5: Forward Euler 1st order, default: 5} (switch)
default DTfvw Time interval for wake propagation. {default: dtaero} (s)
0.0 FreeWakeStart Time when wake is free. (-) value = always free. {default: 0.0} (s)
5.0 FullCircStart Time at which full circulation is reached. {default: 0.0} (s)
--------------------------- CIRCULATION SPECIFICATIONS ----------------------------------------
default CircSolvingMethod Circulation solving method {1: Cl-Based, 2: No-Flow Through, 3: Prescribed, default: 1 }(switch)
default CircSolvConvCrit Convergence criteria {default: 0.001} [only if CircSolvingMethod=1] (-)
default CircSolvRelaxation Relaxation factor {default: 0.1} [only if CircSolvingMethod=1] (-)
default CircSolvMaxIter Maximum number of iterations for circulation solving {default: 30} (-)
"NA" PrescribedCircFile File containing prescribed circulation [only if CircSolvingMethod=3] (quoted string)
===============================================================================================
--------------------------- WAKE OPTIONS ------------------------------------------------------
------------------- WAKE EXTENT AND DISCRETIZATION --------------------------------------------
51 nNWPanel Number of near-wake panels [integer] (-)
default nNWPanelsFree - Number of free near-wake panels (-) {default: nNWPanels}
900 nFWPanels - Number of far-wake panels (-) {default: 0}
0 nFWPanelsFree - Number of free far-wake panels (-) {default: nFWPanels}
default FWShedVorticity Include shed vorticity in the far wake {default: false}
------------------- WAKE REGULARIZATIONS AND DIFFUSION -----------------------------------------
0 DiffusionMethod Diffusion method to account for viscous effects {0: None, 1: Core Spreading, "default": 0}
0 RegDeterMethod Method to determine the regularization parameters {0: Constant, 1: Optimized, 2: Chord-scaled, 3: dr-scaled, default: 0 }
1 RegFunction Viscous diffusion function {0: None, 1: Rankine, 2: LambOseen, 3: Vatistas, 4: Denominator, "default": 3} (switch)
1 WakeRegMethod Wake regularization method {1: Constant, 2: Stretching, 3: Age, default: 1} (switch)
0.001 WakeRegFactor Wake regularization factor (m)
0.001 WingRegFactor Wing regularization factor (m)
100 CoreSpreadEddyVisc Eddy viscosity in core spreading methods, typical values 1-1000
------------------- WAKE TREATMENT OPTIONS ---------------------------------------------------
False TwrShadowOnWake Include tower flow disturbance effects on wake convection {default:false} [only if TwrPotent or TwrShadow]
0 ShearModel Shear Model {0: No treatment, 1: Mirrored vorticity, default: 0}
------------------- SPEEDUP OPTIONS -----------------------------------------------------------
1 VelocityMethod Method to determine the velocity {1:Biot-Savart Segment, 2:Particle tree, default: 1}
1.5 TreeBranchFactor Branch radius fraction above which a multipole calculation is used {default: 2.0} [only if VelocityMethod=2]
1 PartPerSegment Number of particles per segment [only if VelocityMethod=2]
===============================================================================================
--------------------------- OUTPUT OPTIONS ---------------------------------------------------
0 WrVTk Outputs Visualization Toolkit (VTK) (independent of .fst option) {0: NoVTK, 1: Write VTK at each time step} (flag)
1 nVTKBlades Number of blades for which VTK files are exported {0: No VTK per blade, n: VTK for blade 1 to n} (-)
1 VTKCoord Coordinate system used for VTK export. {1: Global, 2: Hub, "default": 1}
default VTK_fps Frame rate for VTK output (frames per second) {"all" for all glue code timesteps, "default" for all OLAF timesteps} [used only if WrVTK=1]
0 nGridOut Number of grid outputs
GridName GridType TStart TEnd DTOut XStart XEnd nX YStart YEnd nY ZStart ZEnd nZ
(-) (-) (s) (s) (s) (m) (m) (-) (m) (m) (-) (m) (m) (-)
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