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New Tool Automates CFD Studies
Posted Thu October 31, 2002 @09:46AM
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News A group of NAS Division scientists has successfully developed an automated system for executing Computational Fluid Dynamics (CFD) parameter studies on NASA’s Information Power Grid (IPG). The AeroDB system simplifies the process of executing many CFD calculations, while taking advantage of timesaving in a distributed computing environment.

“We wanted to design a tool to automate the process of running and monitoring our CFD tools, Cart3D, and Overflow, ” explained Stuart Rogers, senior scientist on the AeroDB project. “This idea fused with our goal of bringing these applications onto the IPG and demonstrating their usability.”

In its initial trial, AeroDB scripts were used to execute and monitor cases for a large parameter study on a Liquid Glide-back Booster (LGBB) vehicle. Within 72 hours, more than 1000 Cart3D and 100 Overflow cases had completed. “We continued running jobs for seven days and completed just over 3000, so we felt that was pretty successful,” adds Rogers.

The trial used 13 different computing resources at four different locations: NASA Ames Research Center in Silicon Valley; NASA Glenn Research Center in Ohio; the Information Sciences Institute at the University of Southern California; and the National Center for Supercomputing Applications in Illinois.

The AeroDB system includes a series of Perl scripts that interact with IPG software tools. Globusrun launched the jobs, the Grid Common Services broker determined the appropriate execution sites, and user authentication was enabled with grid certificates.

( Post Comment )


Research: World-wide Survey on the State of Finite Element Analysis
Posted Thu October 31, 2002 @09:39AM
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News NAFEMS would like to invite you to participate in a world-wide survey on the use of finite element (and related) technology. The survey is being carried out by FENET, which is a network of various organisations with the common objective of improving both the quality of industrial applications of finite element technology and the level of confidence that can be placed in the computed results.

The network is engaged in a range of activities aimed at facilitating the effective exchange of experience and knowledge amongst the different industrial sectors. This questionnaire is an attempt to obtain an overview of the current finite element scene throughout the world. In addition to seeking the views of industrial users, the views of software vendors and academia are also being sought.

The results of the questionnaire will be made available to all respondents. In addition to documenting current state of practice, by industry sector, it is anticipated that the results will provide the basis for other useful business benefits, including …

  • Input to technical strategies and roadmaps
  • A focus for identifying potential areas of competitive advantage
  • Identification of areas for possible code development
  • Identification of differences in awareness and use of technology across sectors

As a small token of appreciation in helping us gather this information, on completion of the questionnaire, we will provide you with a free download of the NAFEMS document “How to Integrate CAD and FE”.

To complete the on-line questionnaire, please click on the following link http://www.fe-net.org/survey.

( Post Comment | Research )


New Software: Fluent Releases IcePro 3.1
Posted Wed October 30, 2002 @10:46PM
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ANSYS FLUENT Fluent Inc. has announced the release of IcePro 3.1, its Pro/Engineer-to-Icepak interface. The interface builds on the successful integration of CAD software and Icepak thermal modeling software. With the release of IcePro 3.1, Pro/Engineer geometry and materials are seamlessly available to Icepak.

"This release is a major advance in the CAD integration paradigm introduced in the previous versions of the interface. Using a few configuration parameters, the user can export much of the model automatically. Icepak can also be started directly from within Pro/Engineer to access the newly exported model," says Icepak Product Manager, Dr. Rajesh Nair.

In addition to the capabilities available previously, the new interface also allows the user to automatically decompose complex geometries into prismatic shapes. All of the manual features are still available.

( Read Full Article | New Software )


Business: Possible Aquisition of Flomerics
Posted Mon October 28, 2002 @05:40PM
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News The Board of Directors of Flomerics Group PLC has announced that the company has been approached for aquisition, however, no formal offer has come yet and the interested party is unnamed.

Flomerics' flagship product FLOTHERM is a leading thermal analysis package for the electronics industry. FLOTHERM competes directly with IcePak from Fluent Inc.

( Post Comment | Business )


New Software: Amtec Announces Tecplot V9.2
Posted Fri October 25, 2002 @01:24PM
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Post Processing Amtec has announced the release of the latest version of Tecplot, their flagship plotting and visualization software.

Tecplot version 9.2 features significant performance and speed improvements creating a faster, more stable, more intelligent application. New options load data faster, especially with large data sets or multi-zone data. Importing non-standard ASCII data with the new General Text Loader is quick and intuitive.

Other capabilities include support of Mac OS X, as well as several new Add-ons and utilities to solve specific problems.

For more information, view the list of new features in Tecplot 9.2.

( Post Comment | New Software )


Application: CFD Powers Fuel Cell Development
Posted Fri October 25, 2002 @01:20PM
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Application Since the introduction of computational fluid dynamics (CFD) to automotive engineering in the late seventies, this sophisticated technology has developed to become mainstream in almost all areas of vehicle design from aerodynamics to fuel injection. The complex CFD codes developed for these applications are now being applied in the development of fuel cell technology.

In the few years since CFD techniques were first used in fuel cell research, the advances in fuel cell technology have been marked. Nearly all the major automotive manufacturers are developing variants and preparing them for entry into the commercial market. Fuel cell technology is generally regarded as the most promising candidate to replace the internal combustion engine because of its potential for fuel efficiency and cleanliness; hydrogen and oxygen power the cells and they release only water.

( Read Full Article | Application )


 
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