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| Application: Simulating the Flowfield Around Helicopters
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Posted Thu July 24, 2003 @09:36AM
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CFD (computational fluid dynamics) has for many years been at the heart of helicopter design, with steady state simulation of aerodynamics providing engineers with more design guidance than could ever be achieved from wind tunnel experiments alone. With deeper understanding of the complex flows involved, it has become clearer that new techniques are required to fully capture the true nature of the flow field. The key lies in developing flow field simulation technology to handle the transient affects associated with rotor motion, including, for example, pitching of the blades.
The Defence Aeronautics Programme at the CSIR (Council for Scientific and Industrial Research), in South Africa has been a key technology solution provider to the South African Air Force (SAAF) for the past five decades. Considerable resources have been dedicated to Helicopter Technology in particular. The programme’s CFD modeling and simulation, aeroelasticity, advanced structures and wind tunnel facilities, are being used to advance aeronautical technology relevant to helicopters in support of helicopter acquisition, operations, aerodynamic analysis and optimization, flight simulator development, hardware development and improvement.
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| Education: CD adapco Group's CFD Thesis Prize 2003
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| New Software: CEI Upgrades Collaborative Visualization Software
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| Business: Gasunie Research and Fluent Europe Form Partnership
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Posted Wed July 23, 2003 @09:07AM
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Gasunie Research of The Netherlands and Fluent Europe Limited are to form a new partnership aimed at providing clients with a truly total consultancy service based upon the combination of experimental work and simulation.
Operating primarily in the utilisation, conversion and transport of energy, the partnership will pool the expertise of both companies to provide leading edge solutions for industry, OEM’s, engineering consultants and transmission and distribution companies.
Gasunie Research has developed wide-ranging expertise in research and physical experimentation through 40 years of work on energy-related problems. It has made an essential contribution to the development of the Gas Market in the Netherlands. Innovation forms the basis for the consultancy practice of this company by offering integrated solutions to complex problems related to energy processes, gas quality and diversity, combustion and flow phenomena.
Fluent is the world’s largest provider of computational fluid dynamics (CFD) software and services, and is established in 22 industries in total. Its FLUENT CFD software package allows the virtual modelling and visualization of gas and liquid flows, heat and mass transfer and chemical reactions, providing the ability to rapidly trouble-shoot and optimise energy-related processes.
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Posted Wed July 23, 2003 @07:39AM
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The Tacoma Narrows, site of one of engineering's most infamous failures, is subjected to enormous tidal currents each day.
The strong currents are complicating the job of constructing a new bridge across the narrows.
Curtis Ebbesmeyer, a retired expert in the tidal currents of Puget Sound, has studied the Tacoma Narrows. "The Narrows is a spectacular place," Ebbesmeyer said. "If you had eyes to see through water, it would be probably the most spectacular thing you could imagine in the Pacific Northwest."
At maximum tidal exchange, the amount of water that flows through the mile-wide passage is the equivalent of several Amazon Rivers.
Harsh conditions in the Narrows have required the development of innovative equipment and construction techniques, and have inspired an almost fanatical commitment to safety at Tacoma Narrows Constructors, the company building the bridge.
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| Application: CFD Used in Festival of Speed Downhill Challenge
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