Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems.

Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.

Thermal Engineering is the branch of engineering that deals with the conversion, transfer, and utilization of heat and energy.

Deals with forces, equilibrium, and motion of bodies.

It is the study of using programming techniques to develop logical solutions for real-world problems.