The VM2D Open Source Code for Incompressible Flow Simulation by Using Meshless Lagrangian Vortex Methods on CPU and GPU

The main features and data structure of the VM2D code is described. VM2D is the original code that implements the meshless Lagrangian vortex methods for two-dimensional viscous incompressible flows simulation. The code is open source and supports parallel technologies OpenMP, MPI and Nvidia CUDA. The VM2D code can be useful for flow simulation around airfoils as well as system of airfoils and unsteady hydrodynamic loads computation. It is possible to simulate flow around immovable airfoils, airfoils moving according to the given law and solve fluid-structure interaction problems in weakly coupled and strongly coupled statement. Known algorithms of vortex methods and original improvements developed by authors are implemented. The current version of source code of the VM2D is available on GitHub under GNU GPL license (https://github.com/vortexmethods/VM2D).