Abstract
In this paper, air flow around a model wind turbine and the NREL offshore 5-MW baseline wind turbine is simulated using different rotor modeling techniques/methodologies. The actuator line (AL) method of modeling the rotor is compared with the fully resolved rotor simulation. The aerodynamic forces for the AL method are computed using an open source code, FAST, from NREL. An in-house code, Tenasi, is used to carry out the CFD simulations. Validation of the computational methodology is carried out by comparing the simulation results with the experimental data for the model wind turbine. Since the NREL offshore 5-MW baseline wind turbine is notional, experimental data is not available for validation. The simulation results are verified using the results from other studies.
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