This lesson covers the process of defining governing equations and adding boundary conditions in Ansys Fluent® fluid simulation software. It explains how to set up the Ansys Workbench™ simulation integration platform, select precision, and adjust solver processes for effective parallelization. The lesson also guides on performing a mesh check, refining governing equations, specifying material properties, and defining boundary conditions. It provides a detailed walkthrough on how to change the model to inviscid, alter the density of the flow fluid, and set the velocity inlet. The lesson concludes with the application of the no penetration boundary condition and saving the project.