Hey!!! HAWC2 (Horizontal Axis Wind turbine simulation Code 2nd generation) is an aeroelastic code intended for calculating wind turbine response in time domain.


The core of the code was developed mainly within the years 2003-2007, by the Aeroelastic Design Research Program at DTU Wind Energy, DTU Risø Campus in Denmark

HAWC2 Specification/features
HAWC2 is able to simulate wind turbines in time response with following properties:
• Normal onshore with 1,2, 3 or more blades
• Vertical Axis Wind Turbines (VAWT)
• Pitch and (active) stall controlled wind turbines
• Guyed support structures
• Offshore turbines on monopoles, tripods or jackets
• Floating turbines with mooring lines
• Multiple rotors in one simulation
• Multibody formulation that can handle multiple degrees of freedom (like blade torsion)
• Structural beam element based on an anisotropic fully populated stiffness matrix (BECAS output data).
• Detailed aerodynamic BEM model that includes:
o Dynamic stall models: Stig Øye model, a modified Beddoes-leishmann model and a model for ATEF (Active Trailing Edge Flaps)
o Skew inflow model
o Shear effects on the induction
o Dynamic inflow model
• Aerodynamic 2D actuator cylinder model for VAWT
• High fidelity aerodynamics by a SFI (structure-fluid interaction) coupling to the CFD code EllipSys3D
• Hydrodynamic model based on Morrison’s equation, WAMIT or McCamy & Fuchs.
• Water Kinematics that includes:
o Currents
o Linear airy waves
o Irregular airy waves
o Deterministic irregular waves
o Stream function wave
o Able to read pre-generated water kinematics
• Wind, turbulence and wake models:
o Able to read Mann turbulence model from the WAsP engineering
o Build-in Mann turbulence generator (Fully coherent 3D-turbulence)
o Able to read Veers turbulence model (used in FLEX5)
o Dynamic wake meandering model
• Default controller provided with a pitchregulated variable speed controller
• Coupling of external systems like Mooring lines, WAMIT etc.
• Soil module consisting of a set of spring-damper forces attached to a main body.
• Eigenvalue analysis at standstill

Contact Details
DTU Wind Energy
Risø Campus
Frederiksborgvej 399
Building 118
4000 Roskilde
Denmark
CVR: DK30060946
Phone: (0045) 4677 5427
Support & general information
hawc2@risoe.dtu.dk