A Numerical Study of the Effect of Elasticity on the Strength of Rotor Blades Using the Fluid-Structure Interaction Method

This paper presents a numerical study based on fluid-structure interaction (FSI) to analyze the impact of elasticity on the resistance of the rotor blade in terms of maximum stress. Simulations, conducted using Ansys Workbench software, implement a strong coupling between fluid dynamics and transient structure. The obtained results allow us to explore the combined influence of elasticity and flow parameters on blade resistance. As a result, we present the variation of maximum stress for different inflow velocities and different rotation frequencies for rigid and flexible cases. Our findings highlight the significant effect of flexibility in reducing structural stresses, emphasizing the marked influence of rotation frequency on the evolution of these stresses compared to the rigid case.