**3. Simulation with CFD**

Computational Fluid Dynamics (CFD) is a technique that allows generating fluid flow simulations with by means of computers. CFD solves numerically the governing laws of fluid dynamics. The set of partial differential equations associated with the system under study are solved in a geometrical domain divided into small volumes, commonly known as a mesh (or grid). The accuracy and validity of simulation results depends on the choice of the CFD model, the physical features incorporated in the governing equations and the boundary conditions (Ferziger & Peric, 1996; Tu, Yeoh, & Liu, 2008).
