Computational Fluid Dynamics (CFD) is a computer-based tool for simulating the behavior of systems involving fluid flow, heat transfer, and other related physical processes. It works by solving the equations of fluid flow (in a special form) over a region of interest, with specified (known) conditions on the boundary of that region.

CFD is used by engineers and scientists in a wide range of fields. Typical applications include:

• Process industry: Mixing vessels, chemical reactors
• Building services: Ventilation of buildings, such as atriums
• Health and safety: Investigating the effects of fire and smoke
• Motor industry: Combustion modeling, car aerodynamics
• Electronics: Heat transfer within and around circuit boards
• Environmental: Dispersion of pollutants in air or water
• Power and energy: Optimization of combustion processes
• Medical: Blood flow through grafted blood vessels