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Application: Pulmonary CFD Modeling
Posted Wed October 15, 2003 @03:23PM
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Application Robert Kunz wrote in about his work titled "Modeling of Oxygen Uptake and Particle Deposition in the Human Lung using Homogeneous and Two-Fluid Models".

Researchers at Penn State University Applied Research Laboratory (USA), Center for Medical Diagnostic Systems and Visualization (Germany), and Image Processing Laboratory, Institute of Anatomy and Cell Biology (Germany), are using modern medical imaging technology and three-dimensional, time accurate mul­tiphase CFD to model oxygen uptake and particle deposition in the human respiratory system.

A physically accurate representation of the trachea and most of the convective regime bronchi (up to generation 13) are obtained using high-resolution computed tomography (HRCT) of a rubber cast of an adult human tracheobronchial tree (Fig. 1). A triangulated model of this data is used as a bounding surface for hybrid unstructured meshes generated using the ICEM CFD 4.2 package.

( Read Full Article | Application )

Application: Bringing Simulation Closer to Reality
Posted Wed October 15, 2003 @08:11AM
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Application In this story, Dr. David Kinnear describes the challenges which must be overcome when modeling a packed bed chemical reactor.

The [CFD] technique is easy to apply to investigations where there are either no chemical reactions or where the reactions all take place in a gaseous phase. But where solid beds of material catalyse the reactions, the surface chemistry and heat transfer to/from the bed also need to be incorporated.

Initial application of CFD to packed bed reactors has been to just look at a simplified system (for example, just the flow and pressure losses), then infer good or bad performance based on that. Recent developments in CFD software focused on this application are intended to make it much easier to undertake simulations, moving towards direct prediction of performance.

( Read Full Article | Application )

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:

( 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 )

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