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FLUENT Software Meets JSAE Benchmark
Posted Mon June 10, 2002 @04:51PM
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News Earlier this year, the Japan Society of Automotive Engineers (JSAE) invited the major CFD software vendors who serve Japan's automotive industry to take part in a benchmarking exercise which tested CFD predictions on six classical automotive problems. Fluent Asia Pacific, Tokyo, Japan, using the worldwide company's flagship product, FLUENT, was one of the few companies to successfully complete all of the challenge problems with a high score.

The test cases included:

  • External aerodynamics
  • HVAC climate control in an automobile cabin
  • Static port modeling for internal combustion engine analysis
  • HVAC defrosting of an automobile windscreen
  • Automatic meshing capabilities
  • Visualization capabilities

    Although Fluent has numerous turbulence models and wall functions, the rules of the competition specified that participants use the default turbulence model without modifying any of the turbulence model constants. Fluent employed the realizable k-epsilon model throughout. Participants were, however, allowed some flexibility over the mesh design. A tetra mesh with a hybrid prism near the surface proved to be most popular.

    In addition to checking the accuracy of the solutions against experimental data, the calculation speed and memory requirements were also taken into consideration. In all these important areas, FLUENT performed well. A full description of the results is available from the Japanese Society of Automotive Engineers.

  • ( Post Comment )

    New Software: Virtual Vantage 3.0
    Posted Fri June 07, 2002 @05:53PM
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    Post Processing Fuel-Tech N.V., a world leader in air pollution control technology and advanced engineering solutions for energy systems, today announced the launch of Virtual Vantage™ 3.0 software, a state-of-the art virtual reality-based product used for the visualization of computational fluid dynamics (CFD) datasets in a 3D, interactive, immersive environment.

    The Company’s proprietary Virtual Vantage technology which is based upon internally developed software for the visualization of complex CFD modeling results, provides users with high-end visualization services. This technology is a cost-effective and easy to use software tool that stimulates problem solving in a visual environment, accelerating design decisions and helping users to enhance their time to market.

    Virtual Vantage 3.0 software is being introduced at the 2002 Fluent Users’ Group Meeting in Lebanon, New Hampshire on June 10-12. Through a strategic partnership, Fluent provides Fuel Tech with marketing support for its Virtual Vantage technology.

    ( Post Comment | New Software )

    New Software: Free CFD Solver
    Posted Thu June 06, 2002 @03:08PM
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    News For limited time, you can receive the 3-D Navier-Stokes solver PAB3D limited edition free of charge. The limited edition will have all the options except it will limit the problem size to 500,000 grid points and the number of distributed computers to 4.

    The PAB3D code, which was developed at NASA Langley Research Center, solves the three-dimensional Reynolds-averaged Navier-Stokes equations with a finite-volume formulation on structured multi-block grids. The flow solver has a robust (production quality) two-equation k-epsilon turbulence models with anisotropic algebraic Reynolds stress models. PAB3D also has the capability of modeling standard air real-gas effects. The code is capable of working in multiprocessors and distributed computer systems (CFD on Inexpensive Clustered Computers). This code has been used to simulate complex aerodynamic flow configurations and is currently being used in several national programs.

    If you are interested, please fill the download registration form at The PAB3D solver has been tested using several operating systems, such as, LINUX, MAC, WINDOWS, SGI, SUN, and HP.

    ( Post Comment | New Software )

    Education: Fluid Mechanics and CFD Review Course
    Posted Wed June 05, 2002 @06:42PM
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    News Do you need an introduction (or re-introduction) to fluid mechanics, heat transfer and computational fluid dynamics? Fluent Inc. is offering a special two-day course designed specifically for this purpose. The next course offering is July 31-August 1, 2002. The main goal for our Fluid Mechanics and CFD Review course is to help the users of CFD to be more successful by having a more thorough knowledge of the underlying physics and numerical techniques that are present within CFD software packages.

    It is assumed that participants will have a technical education and background, but not necessarily an engineering degree. The course will be conducted lecture-style, and the topics will be covered in a general fashion with no particular bias towards any CFD software package.

    Visit the course web site for the course description, dates, locations, course fee information, and to register online.

    You may also register by contacting Fluent’s Training Coordinator, Kelly Carter, at 603-643-2600 or

    ( Post Comment | Education )

    New Software: CGNS Version 2.1 Released
    Posted Wed June 05, 2002 @06:41PM
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    News CGNS Version 2.1 has been released.

    The specific purpose of the CFD General Notation System (CGNS) project is to provide a standard for recording and recovering computer data associated with the numerical solution of the equations of fluid dynamics. The intent is to facilitate the exchange of Computational Fluid Dynamics (CFD) data between sites, between applications codes, and across computing platforms, and to stabilize the archiving of CFD data.

    The new version features some significant enhancements:

    • I/O of user-defined data arrays
    • I/O of linked nodes
    • I/O of chemistry data
    • New FORTRAN 77 examples

    The library can be downloaded from the CGNS web site.

    ( Post Comment | New Software )

    Application: Improving Understanding of Turbine Shroud Losses
    Posted Tue June 04, 2002 @02:26PM
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    Application by Paul Roach, ALSTOM Power UK Ltd.

    A world-leading supplier to the energy market, ALSTOM offers its customers a comprehensive range of power generation solutions from turnkey power plants to gas-, steam- and hydro-turbines, generators and boilers. Gas turbine design and manufacture has been undertaken at Alstom's Lincoln site since the late 1940’s, with engine ratings up to the 13MW Cyclone introduced in 1997.

    To help maximize powerplant efficiency, the Company uses state-of-the-art CFD methods to design compressor and turbine blading. In addition to in-house software, ALSTOM has also been making use of CFX-TASCflow in the last few years. To date, its main use in the Turbine Department has been to examine secondary and parasitic gas flows, such as can occur in blade cooling passages.

    ( Read Full Article | Application )

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