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New Software: Latest Fluent Software Brings New Power to Automotive CFD
Posted Wed April 09, 2003 @08:37AM
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ANSYS FLUENT The latest version of FLUENT brings new possibilities for modeling fuel injectors, IC engines, valves, and other moving equipment with its dynamic mesh modeling capability. Users simply set up the initial mesh, prescribe the motion, and sit back and watch as FLUENT automatically changes the mesh to follow the motion. "FLUENT can now easily simulate physical phenomena previously requiring tedious manual preparation," says Fluent's Chief Technology Officer, Dipankar Choudhury. "The applications for dynamic mesh modeling are limitless. Our users are thinking of new ways to use it all the time," he adds.

FLUENT 6.1 incorporates a new cavitation model which is accurate even under very high pressure conditions and new reaction modeling functionality targeted for exhaust system design. IC engine modeling capabilities are further enhanced by crevice and spray-wall interaction models. Also, FLUENT 6.1 offers dynamic coupling capability with WAVE (Ricardo) – in addition to GT-Power (Gamma Technologies, Inc.) and Virtual Engines (Optimum Power Technology).

( Read Full Article | New Software )


Events: NAFEMS World Congress 2003
Posted Wed April 02, 2003 @10:04AM
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News Preparations for the NAFEMS World Congress 2003 are now in their final stages. This bi-annual event is being held in Orlando, Florida USA from the 27th-31st of May, and features papers from major figures in the international engineering analysis community.

The conference aims to provide delegates with a unique insight into established methods, along with a visionary view of new technologies. The combination of these insights will have a real impact on the product development process.

With papers being presented from the leading industrial experts and academic researchers from no less that 18 countries, the Congress promises to be a truly international representation of the state of simulation and analysis technology worldwide.

The keynote address is being provided by Tom Curry of LMS International, and will focus on the business benefits of simulation, but will also touch on the people issues which are vital to successful implementation. With over 25 years experience in the analysis, simulation and testing markets, Tom is uniquely placed to provide a leading edge insight into the business benefits of simulation.

Delegate registration is still open, and anyone wishing to register for the congress should contact Anne Creechan at the NAFEMS office on +44(0)1355 22 56 88, or e-mail anne@nafems.org. You can find out more and also register online at www.nafems.org/nwc2003.

( Post Comment | Events )


Application: CFD Assists Nozzle Propeller Design
Posted Wed April 02, 2003 @09:35AM
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Application by Moustafa Abdel-Maksoud and Hans-Jürgen Heinke, SVA Potsdam

Nozzle propellers are used in many types of ships and for dynamic positioning of platforms. Their operation at high thrust loadings and low inflow velocities requires high-tech designs. SVA Potsdam specializes in these propulsion systems and is investing in continuous research to ensure that its designs meet expectations.

The flow in the gap between the propeller tip and the inside wall of the nozzle strongly influences the performance of the propeller, and the greater the thrust loadings, the greater the influence. CFD allows visualization of these flows, which are difficult to study experimentally because the gap can be less than one millimeter. Unfortunately, the required computational effort increases rapidly as the thrust loading increases (due to slower convergence as the rotational speed of the propeller increases), and we have realized that combining experimental and numerical investigations can overcome the shortcomings of each method. The experimental data provide a good overview of the forces and moments for the whole range of operational conditions, while CFD reveals the detail of the flow for selected loadings.

( Read Full Article | Application )


Events: AVL to Present CFD Lecture at Biomed 2003
Posted Wed April 02, 2003 @09:08AM
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AVL Vascular diseases such as arteriosclerosis and aneurysms are becoming frequent disorders in the industrialized world due to sedentary lifestyles and rich food. Causing more deaths then cancer, cardiovascular diseases are the leading cause of death in the western world. Significant research efforts are being made to investigate detailed effects of vascular diseases and their resulting consequences in the diminution of health.

For more than a decade numerical predictions of blood flow inside vessels have aided the research efforts. An increase in CFD software user-friendliness and computer performance has caused the simulations to gain more and more practical importance.

AVL will present a lecture at Biomedicine 2003 in Ljubljana, Slovenia 2-4 April 2003. If you are interested, do not hesitate to ask for the complete publication by email: ast@avl.com.

( Read Full Article | Events )


Fluent tutorials
Posted Tue April 01, 2003 @02:11PM
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Help Desk I am a PhD student looking to model heat transfer in solid oxide fuel cells as part of my PhD. I am considering spending a substantial portion of my grant on a fluent training course but I would like to have a good idea of what I am doing before I go on the course. Can anyone tell me if I can find any tutorials that take me through setting up a geometry and mesh in gambit to solve the problem?

( Post Comment )


Application: CFD Software Makes Waves in the America's Cup
Posted Tue April 01, 2003 @12:00PM
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Application The landlocked European nation of Switzerland is not renowned for its seafaring traditions. However, in Auckland, New Zealand during the last three months this stereotype was firmly knocked on the head, as the Swiss-based Alinghi Challenge, skippered by Russell Coutts, won yachting's blue ribbon event, the America's Cup, from two-time holders Team New Zealand in a dramatic 5 - 0 series. This has been one of the most unprecedented yachting victories in the 152-year history of the venerable competition.

At the Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland - the Official Scientific Advisor to the Alinghi Challenge for the 2003 America's Cup - researchers working in the group of Prof. Alfio Quarteroni have applied leading-edge numerical flow simulation techniques using Computational Fluid Dynamics (CFD) software. These simulations have provided valuable information to the Alinghi Designers Rolf Vrolijk and Manolo Ruiz del Elvira who, together with Coordinator Grant Simmer, designed the winning high-performance Alinghi racing yacht.

( Read Full Article | Application )


 
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