For beginners trying to understand the basic implementation methodologies of Computational Fluid Dynamics (CFD), flow-over-a-cylinder is one of the classical problems to work with. This is because of the following:
- It has been widely studied in the literature, i.e. theoretically, numerically and experimentally for a variety of Reynolds number.
- It provides an understanding of the existence of boundary layers which was immortalised by Prandtl at the beginning of the 20th century.
- It has such a beautiful flow field (for the transient case) which is now formally called as the Von-Karman vortex street.
That being said, I am providing this tutorial for the people who are new to CFD and are interested in solving problems involving a Fluid-Solid Interaction (FSI). Take your time to watch it and don’t hesitate to ask me any questions.