Learn about how computational fluid dynamics helps to understand the movement of missiles and aircrafts.
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Learn About the Functions of Computational Fluid Dynamics Computational fluid dynamics or CFD is the name given to science of flow of real air around proposed aircraft. Computations that describe how an aircraft or missile move through the air, air craft used to be designed by the intuitive use of the flow equations, trial and error and experimentation. Today understanding if the physics of flight has been enchanted by CFD, the five governing equations of fluid dynamics have sold each point to this grid. There are millions of grid points and the computers solve the five equations at each one. Each of the five equations is solved at thousands of times a second in order to arrive at the final converged solution. With this massive number of equations, research scientists reduce the data to provide direct visual presentations the flow around an aircraft. CFD can visualize flow in air or water; it even helps medical engineers design and look at proposed artificial heart. Computer graphics uses slices of data to look at different 3D surfaces; here we see a section of the space shuttle orbital engine used to redesign components in the shuttle. This recreation of flow inside the turbine of a jet engine is a stunning achievement. It required 22 trillion computations. Rocket scientists use the three dimensional view of the sonic surface of a proposed body design. The sonic zone is the zone where air passes from sub sonic to super sonic speeds. An example of computer power is the aero space plane, designed to travel at 18,000 miles per hour, it repeatedly changes the physics of flight and outruns the capabilities of wind tunnels. To know what’s happening at speeds of Mach 13 and beyond, super computer replication of flight is absolutely essential.
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