2D Dynamic Stall Simulations with Time-Varying Freestream Representative of Helicopter Flight

Dynamic stall of helicopter rotor blades occurs predominantly on the retreating rotor blade in high-speed forward flight.It occurs at very fast (or dynamic) change of the angle of attack of an airfoil, leading to lift, drag and pitching moment loads greatly exceeding those at slow (or quasi-steady) changing of angle of attack.The aerodynamic loads generated during dynamic stall are a major source of blade vibration, such that their There were many researchers, namely Kobra Gharali, Peter Gerontakos, Guillaume Martinat, Louis Gagnon who were kind enough to correspond with me about their work, which became the foundation of my own.I would also like to thank the OpenFOAM community, without whom the use of this software would not have been possible.The documentation of this software is very limited, as is the number of people with experience using it, and as a result new users are heavily dependent on the kindness of strangers on the message boards to decipher how to use the software.To the numerous anonymous users who assisted me: I hope that I can in turn pay it forward with the knowledge I have gained.Many thanks to Neil McFadyen for setting up a cluster for my cases to run remotely, and Nancy Powell for her assistance throughout the duration of this degree.I also wish to acknowledge the financial