$\star \text{ }\underline{\text{Computational Fluid Dynamics (CFD)}} $ $\rightarrow$ Fluid flow and heat transfer optimization is essential in the early design cycle. $\rightarrow$ CFD tools provide engineers insight into complex transient and turbulent flow fields. $\rightarrow$ It allows analysis and provides design for engineers to optimize components geometry for efficient fluid flow and heat transfer. $\phantom{\text{CFD softwares}}$ $\text{CFD softwares}$ 1. Ansys 2. OpenFOAM 3. Fluent $\phantom{\text{CFD softwares}}$ $\text{Why should CFD be used?}$ $\rightarrow$ It visually allows users to view: 1. Velocity 2. Pressure 3. Thermal conditions $\rightarrow$ CFD costs much less than experiments because physical modifications are not necessary $\rightarrow$ CFD predicts performance before modifying or installing systems.