Impact of Computers on Aerodynamics Research and Development

Article Abstract:

The study of aerodynamics began with Sir Isaac Newton in 1926 and now uses high-speed supercomputers to simulate aerodynamic flows. As computers improve in performance, levels of approximation to the Navier-Stokes equations become more exact. Numerical methods are now being changed to use advanced computer architectures such as vector and concurrent processing. Examples of advances using the new techniques are shown. The development of computational aerodynamics will be paced by turbulence modeling, grid and geometry definition, solution-algorithm development, management of large databases, and management acceptance of results. Available computational power, however, is the ultimate limiting factor. NASA's Numerical Aerodynamic Simulation (NAS) Program should lead development toward more advanced systems. Graphs and diagrams show improvements in computer systems.

Supercomputers, Aerodynamics, Numerical analysis, Fluid mechanics, Supercomputer, Aerospace engineering, Simulation, Scientific Computers, Flow Rate

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Computers for Navigation

Article Abstract:

Calculators and small computers are used for performing navigational computations and have been integrated into shipboard instruments. Using peripheral components, a hand-held calculator can be used for a systems controller. Most programming for navigation must be done by the user because little software is available. A trigonometry program is included.

Software, Computers, Digital computers, Navigation, Calculators, Personal Computers, Maritime Shipping, Programs

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