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OpenGL 3D Graphics Boards
Posted Tue June 18, 2002 @06:13PM
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Hardware ExtremeTech has posted a nice article which reviews the top PC OpenGL 3D graphics boards in fine detail.

In addition to running the common SPEC workstation benchmarks, the reviewers acquired a number of workstation-class applications that span CAD, MCAD, and DCC software areas, and created a number of custom tests with help from the software vendors.

The review also focused on performance in "dual-head" mode, which all of the top boards now support.

Now if someone would just donate a Wildcat III to me for "testing"...

( Post Comment )

Application: CFD Helps Increase Hot Oil Heater Output
Posted Mon June 17, 2002 @05:16PM
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Application Computer simulation helped increase the output of a hot oil heater by 20%. The challenge was to increase the thermal output of the heater without causing the tubes that carry the oil to rise to such a high temperature that they or the oil would be damaged. Refinery engineers ran experiments that demonstrated that the existing burner layout in the heater would indeed overheat the tubes if run at the higher levels required to implement the desired production increase. Without simulation, the only viable option would have been to build and test a scale model of the heater, which would have been expensive and would not have provided much information as to what was happening inside. Instead, engineers used computational fluid dynamics (CFD) to analyze the flow within the heater, providing a clear understanding of the problem and making it relatively easy to find a solution. CFD helped us zero in on the offending flow pattern which turned out to be an inversion of flue gas in the middle of the radiant chamber, pushing the flame towards the tubes. said Jack Deng, Chief Technologist for Petro-Chem, New York, New York. Once we understood the problem, we changed the burner configuration to break up the flue gas recirculation patterns, and straighten the flames.

Petro-Chem is a privately held international organization providing design, engineering, development, fabrication and erection of direct fired heaters and heater accessories in the hydrocarbon processing, chemical processing and energy industries.

( Read Full Article | Application )

Fluent is Given Prestigious Engineering Award
Posted Fri June 14, 2002 @02:06PM
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News Fluent Inc. has been given a prestigious Engineering Heritage Hallmark Award for its innovation and excellence in mechanical engineering from the Institution of Mechanical Engineers.

The Award is the first ever to be given for software. Commenting on the award, Managing Director, Chris King said "I am delighted to see this recognition of the quality and impact of the FLUENT CFD software. The Institution of Mechanical Engineers is the UK's premier Mechanical Engineering forum. That they should have made the first such award for a software product to FLUENT is very special. In doing so they are recognising the contribution that the efforts of all sections of the Fluent organization have made to the establishment of CFD as an important engineering tool in so many industries."

Only two or three awards are given out annually from the IMechE. The criteria are strict and applicants must demonstrate industrial innovation and have made a significant contribution to mechanical engineering. Recent awards have been presented to organisations such as Rolls Royce, Eurostar and The Channel Tunnel.

Fluent's nomination for the award was supported by John Slater, Chairman of the Yorkshire Region of the IMechE, who adds "I was very happy to nominate the FLUENT software for the Heritage Award, it is a leading edge code that has inspired engineering students and commercial users for over a decade. It is a well deserved honor for the company and for South Yorkshire."

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New Software: MayaVi-1.2 Released!
Posted Thu June 13, 2002 @03:37PM
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Post Processing MayaVi is a free, easy to use, scientific data visualizer. It is written in Python and uses the Visualization Toolkit (VTK) for the graphics. It provides a GUI written using Tkinter. MayaVi is free and distributed under a BSD license. It is also scriptable and cross platform and should run on any platform where both Python and VTK are available.

For more information, downloadable sources and binaries, screenshots, installation instructions, documentation etc. visit the MayaVi home page on SourceForge.

Also bundled with MayaVi is a VTK pipeline browser written in Python and a new utility module that makes using VTK easier from the interpreter.

Changes: A license change from GPL/LGPL to BSD, a new interactive data picker and light manipulation kit, a new CellData to PointData filter, Geomview OOGL export support, a few more commandline options, important bugfixes, PDF documentation, and new RPMs and debs.

( Post Comment | New Software )

NASA Tech Briefs Opens Software Center
Posted Wed June 12, 2002 @06:14PM
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News NASA Tech Briefs, an official technical publication of NASA, has opened a new Software Center featuring FREE downloads of NASA software for commercial applications and development, ranging from aerodynamic analysis to viscosity measurement.

In addition to the downloads, the Software Center contains engineering software reviews and feature articles.

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New Software: Coolit V4.50
Posted Wed June 12, 2002 @06:11PM
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News Daat Research Corp. has added multiple processor capabilities to boost the calculating speed of its CFD thermal and flow analysis software, Coolit.

When installed into a multiple processor system, Coolit automatically recognizes the number of processors and parallelizes the computation accordingly. The result is a significant speed increase that ranges from a minimum of 1.5 times to almost double for dual processors. For more processors, speed gains are even greater.

This latest Coolit release, version 4.50, also incorporates numerous new features that aid the model building process and increase modeling accuracy. Most significant is the addition of new shapes to the component library. Tetrahedron, pyramid and spherical cap components join the previously released triangular prism components to make possible more complex shapes and more accurate geometries.

Other changes in the new release included greater editing flexibility, a wider range of component characteristics, and customizable projections in panel views. Coolit v.4.50 also implements a new advanced model for porous media. The new model is a significant improvement over the standard Brinkman model, which is used in most commercial CFD programs.

Coolit v.4.50 operates on all Windows-based platforms: Windows 95,98,2000,XP and NT. More information on Daat and Coolit can be found on the Daat web site.

( Post Comment | New Software )

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