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Army Engineers, Microsoft to Analyze Extreme Weather Risk Using Cloud-based Analytics

Turbulence model could enhance rotorcraft, munitions performance


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IMAGE: A new modeling approach allows engineers to simulate an entire vortex collision without needing to do extensive data processing on a supercomputer.
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Credit: Purdue University/Carlo Scalo
RESEARCH TRIANGLE PARK, N.C. Design of Army aerial vehicles and weapon systems relies on the ability to predict aerodynamic behavior, often aided by advanced computer simulations of the flow of air over the body. High-fidelity simulations assist engineers in maximizing how much load a rotorcraft can lift or how far a missile can fly, but these simulations aren t cheap.
The simulations that designers currently use require extensive data processing on supercomputers and capture only a portion of vortex collision events - which can cause significant performance degradation, from loss of lift on a rotor to complete loss of control of a munition. A new turbulence model could change that. ....

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Turbulence model could help design aircraft capable of handling extreme scenarios


Turbulence model could help design aircraft capable of handling extreme scenarios
Note to journalists: A video about the development of this model is available on YouTube. For a copy of the paper, please contact Kayla Wiles, Purdue News Service, at wiles5@purdue.edu or 765-494-2432. Photos and video of the research process and simulations are available via Google Drive. Journalists visiting campus should follow visitor health guidelines.
Engineers make it possible to simulate complete ‘dance’ of colliding vortices at reduced computational time
WEST LAFAYETTE, Ind. In 2018, passengers onboard a flight to Australia experienced a terrifying 10-second nosedive when a vortex trailing their plane crossed into the wake of another flight. The collision of these vortices, the airline suspected, created violent turbulence that led to a free fall. ....

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Army Research Lab Announces Acquisition of Two New Supercomputers


Army Research Lab Announces Acquisition of Two New Supercomputers
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Two new supercomputers are set to join the Defense Department’s stock of sophisticated machines. 
The Army Research Laboratory, which houses the Pentagon’s Supercomputing Resource Center, announced the fresh acquisition this week. Among other systems, the new and advanced computers will push the center towards establishing a cumulative capability of more than 23 petaflops of performance.
Defense officials anticipate the supercomputers will enter production service in “the mid-fiscal 2021 timeframe,” the lab’s announcement notes.
The systems are named Jean and Kay, as an homage to Jean Jennings Bartik and Kathleen “Kay” McNulty Mauchly, who are considered by Defense to be “computing pioneers as part of the original team of programmers of the Electronic Numerical Integrator and Computer,” or what the release called the world ....

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