Computational Fluid Dynamics modeling provides insight into detailed fluid flow characteristics and resulting system performance. CFD methods solve the equations for mass, energy, and momentum at discrete locations in space. A two-dimensional (2D) or three-dimensional (3D) grid (also called a mesh) within the problem domain defines the detailed geometry for solving these equations. CFD methods determine detailed flow fields, including velocity, pressure, temperature, composition and density at each point in the grid.