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Events: VIII ICFD Conference on Numerical Methods for Fluid Dynamics
Posted Tue October 14, 2003 @08:12AM
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News The eigth international conference on CFD organised by the ICFD (Institute for Computational Fluid Dynamics) will take place at St Catherine's College, Oxford, 29 March - 1 April 2004.

Invited Speakers are: Remi Abgral (Bordeaux), Jerry Brackbill (Los Alamos), Tom Hou (Caltech), Tony Hutton (QinetiQ Ltd), Andy Keane (Southampton), Roland Keunings (CESAME Louvain), Mike King (BP), Anthony Patera (MIT), Piotr Smolarkiewicz (NCAR Boulder), John Trangenstein (Duke), Alessandro Veneziani (Milan), Andy Wathen (Oxford).

Dealine for two page abstracts 25 NOVEMBER 2003.

For further details see the conference website.

( Post Comment | Events )


Flexible Supercomputing Offered with Fluent on Demand
Posted Tue October 14, 2003 @08:04AM
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News Gridcore AB and Fluent Sweden are offering flexible compute power for Fluent On demand through the Internet. This means that one could get flexible access to both batch and interactive runs of Fluent running in parallel (or serial) on professionally operated Linux clusters - and only pay for the cpu time used.

This service will allow Fluent users to dimension their resources according to their real needs without committing themselves to large investments in computing resources.

More info: http://www.gridcore.se/shownews.php?id=20

( Post Comment )


Williams F1 Gives Green Light to Linux
Posted Mon October 13, 2003 @01:41PM
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Hardware The BMW Williams Formula 1 (F1) team has dramatically improved its high-resolution aerodynamic modelling of team cars by introducing an HP Linux supercomputer cluster.

The company, which currently lies second in this year's F1 Constructors' Championship, has added "several hundred" HP ProLiant Intel-based servers to its Oxfordshire headquarters.

"Last year showed us that our chassis was a model of reliability but that there's still room for improvement, particularly on the aerodynamic front," said Patrick Head, technical director at Williams.

A spokesman for Williams F1 added that the main driver behind the decision to expand the team's supercomputing resource was the need to reduce the time taken to perform a complete analysis for a given size of model.

( Read Full Article )


Application: CFX Aids Design of World’s Most Efficient Steam Turbine
Posted Fri October 10, 2003 @08:25AM
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Application by Mathias Deckers,
Steam Turbine Blading Technology,
Siemens, Germany

The VEAG power plant in Boxberg, Germany, has recently recorded a world-record of 48.5% gross efficiency for its Siemens’ steam turbine, with specific efficiencies of 94.2% for the high-pressure turbine and 96.1% for the intermediate-pressure turbine.

By allowing Siemens engineers to visualize the flow inside the turbine with a minimum amount of model tests, CFX played an important role in the development of that turbine. We selected CFX-TASCflow primarily because it can analyze a much broader range of turbine features than the other packages that we investigated, and over the years it has proven its ability to model most of our designs. We have also found that CFX staff provide very competent technical support.

( Read Full Article | Application )


A Designer Makeover for a CFD Code
Posted Thu October 09, 2003 @02:21PM
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CD-adapco One of the fundamental problems of CFD (computational fluid dynamics) is that skill and experience are needed to use it effectively. It is all too easy for the inexperienced to set up a non-physical calculation that produces an erroneous result. The need to simplify or "de-skill" the process is clear. However, previous attempts that relied on reducing the CFD functionality have been flawed by fact that even simple flows require sophisticated meshing and physical modeling tools.

The CD adapco Group's answer has been to develop a "plug-in" for their CFD code STAR-CD, called STAR-Design, that provides an alternative path through the full STAR-CD system. It enables simple incompressible/compressible, laminar/turbulent flow and heat transfer cases to be set up and run with unprecedented ease, speed and accuracy.

( Read Full Article )


Application: Modeling Abrupt Wing Stall
Posted Thu October 09, 2003 @08:19AM
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Application A team of scientists and engineers from NASA, the Naval Air Systems Command (NAVAIR), the Air Force Research Laboratory (AFRL), and several universities and government contractors have been studying the problem of abrupt wing stall in supersonic aircraft.

When a fighter pilot engages an enemy at near sonic speeds, abrupt wing stall is definitely not part of his flight plan. Yet for the past 50 years, all aircraft that can operate at velocities near the speed of sound, and angles of attack near maximum lift, have experienced some form of uncommanded lateral motion – where the aircraft undergoes a one-sided or side-to-side upset from the intended direction of flight. At the very least, it causes loss of advantage. At its worst, it could result in a loss of the aircraft.

"This is not the first time this aerodynamic behavior has been seen" notes Lawrence Ash, the Office of Naval Research program manager leading the national study. "It can sometimes be fixed by modifications to the aircraft flight control system.

( Read Full Article | Application )


 
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