Gormont-Berg Model

For the simulation of dynamic stall on VAWT, especially at low tip speed ratios, where the angle of attack variations can be very large, QBlade includes Berg’s 1 modification of Gormonts 2 dynamic stall model.

1

D. E. Berg. Improved double-multiple streamtube model for the darrieus-type vertical-axis wind turbine. 1 1983. URL: https://www.osti.gov/biblio/6279384, doi:.

2

R. E. Gormont. A mathematical model of unsteady aerodynamics and radial flow for application to helicopter rotors. 1 1973. URL: https://apps.dtic.mil/sti/citations/AD0767240, doi:.