Simulation of Aeroelastic Oscillations of Structural Elements Using the Vortex Particle Method in the VM2D Code

This paper presents the application of vortex particle methods for simulating external flows around engineering structures using the VM2D code, which has been enhanced with a hybrid fast algorithm that combines the Barnes–Hut method and the Fast Multipole Method. This approach reduces computational costs preserving physical accuracy, thereby enabling long-duration simulations of problems that were previously prohibitive with direct algorithm. The capability of the fast algorithm is demonstrated through three test cases, confirming its suitability for practical engineering applications.