Flow over an American Football - Homework


Ball sports such as soccer, American football, cricket and baseball rely heavily on the knowledge of how the ball and air interact with each other. Using computer simulations, you can accurately predict the physics of air flow around different types of ball configurations. This information can be critical when formulating game-winning strategies.


In this example, simulations are performed to compute the flow of air around an American football. You will learn how to setup 2D axisymmetric simulations for 1) viscous flow and 2) inviscid flow approximations (as a homework assignment), and compare and interpret the results of the two simulations.


Download the Mesh file needed for setting up the simulation and the associated Case & Data files from here. Follow the instructions below to set up this simulation in Ansys Fluent starting with a Mesh file. In case you face any issues setting up or running the simulation, then please use the corresponding initial and final Case and Data files.

Alternate video link.

Results and Discussion

Let’s now analyze the simulation and understand the physics of air flow over an American football.