Hello.
CFD (Computational Fluid Dynamics) is related to aerospace industry because the concepts will be used for analysis , design and certifications of the aircraft , in order to have an accurate physical modle of aircraft, concept of computational fluid dynamics are used and majorly some topics or mathematical concepts are listed below which will be used in this industry:

• Euler equations.
• partial differential equations.
• Renoylds-Averaged navier-Stokes formulation.
• Potential flow etc.

Along with this in various components concept of CFD is used like hydraulic excitation using hydraulic pitch links etc.
Best of luck.