tools. Dynamic stall is one of the phenomena associated with the unsteady conditions for VAWTs, and it is in the focus of … the study. Two dynamic stall models are compared: the widely-used Gormont model and a Leishman–Beddoes-type model. The … dynamic stall effects, the comparison of force coefficients between the simulations and experiments is done at low tip speed …

Gormont dynamic stall model that gives improved predictions of rotor power for the turbines considered. …