Definitions for "Computational Fluid Dynamics"
The science of using supercomputers to solve complex mathematical equations that predict how an object like an aircraft responds to the air flowing around it. CFD is a Tool of Aeronautics that enables engineers to "fly an aircraft in a computer".
Equations that are known are programmed into computers. The computers provide solutions to the problem of external airflow over vehicle shapes. The body of the configuration and the space surrounding it are represented by clusters of points, lines and surfaces; equations are solved at these points. CFD is divided into three steps. Grid generation, numerical simulation and post-process analysis. Here are some examples of CFD data sets.
the science of determining a numerical solution to the governing equations of fluid flow whilst advancing the solution through space or time to obtain a numerical description of the complete flow field of interest