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New Software: Fluent Releases Icepak 4.0
Posted Mon July 01, 2002 @05:53PM
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News Fluent has released version 4.0 of its Icepak electronics cooling simulation software. The newest version of Icepak delivers the industry's fastest time-to-solution through its combination of non-conformal meshing and unstructured meshing strategies, including assembly meshing. These technologies let the designer build a more computationally-efficient and accurate model faster than any other thermal management software package.

According to Icepak Product Manager Dr. Rajesh Nair, "Icepak 4.0's new 'Assembly Meshing' retains geometric shape fidelity, improves accuracy by maintaining model detail, reduces mesh counts by 20-70%, and decreases solution time, design time and project costs."

( Read Full Article | New Software )

New Software: GridPro/CadFix
Posted Mon July 01, 2002 @12:22PM
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Grid Generation PDC has teamed with TranscenData to release GridPro/CadFix. With GridPro/CadFix, users of GridPro get the capability to import IGES files as well as Native CAD geometries into GridPro.

TrancenData's CADfix software enables the exchange, reuse, and recovery of CAD data. GridPro/CadFix will help streamline your analysis problems by providing a bridge from CAD models to the best Hex grid generation tool in the industry.

( Post Comment | New Software )

New Software: CFX-5.5.1 Released
Posted Mon July 01, 2002 @10:39AM
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News CFX has released the latest version of their unstructured flow solver. CFX 5.5.1 features generalised grid interface enhancements, extended multiple frame of reference and multiphase functionality.

There are also numerous improvements to the user interface, notably in the Solver Manager and the pre-processor, CFX-Build, which now features solid modelling tools.

In addition, CFX-5.5.1 offers an open architecture that encourages customization on all levels. Both input and results are in accessible formats that allow easy customization enabling full integration within your existing engineering software environment.

( Post Comment | New Software )

New Software: Gridgen v14.02 R1
Posted Fri June 28, 2002 @01:14PM
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Grid Generation Pointwise has released a maintenance upgrade to their CFD mesh generation software. Gridgen Version 14.02 includes bug fixes and the following new features:
  • Additional Glyph support for Analysis Software commands.
  • The Alt key (instead of the Shift key) is now being used in conjunction with the Rotation keys to produce single-increment rotations.

All users should upgrade to Version 14.02 immediately in order to benefit from the fixes.

( Post Comment | New Software )

Features: CFX Reliable for Development of Hydraulic Machines
Posted Thu June 27, 2002 @04:54PM
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News by Andrej Lipej, Turboinstitut, Republic of Slovenia

For the past 50 years, Turboinstitut has been involved in the research and development of hydraulic machines. CFD has become an indispensable tool in our activities, and this is especially true for our turbine refurbishment projects, which are usually realized entirely with CFD. Using CFX-TASCflow, we can analyze the flow throughout the whole turbine, taking into account the stator-rotor-draft tube interaction and avoiding potentially inaccurate boundary conditions between components. However, compared to individual simulations for each part, such calculations require large models and long run times. Separate analysis is much faster, but it is essential to know when coupled analysis must be performed and what are the differences between separate and coupled analyses. At the Institute, by comparing results for coupled and separated calculations, we have found that the separate analysis usually overpredicts flow energy losses in all turbine parts and only coupled analysis is suitable for accurate prediction of turbine efficiency.

( Read Full Article | Features )

Research: NAS Develops Open Source Visualization Component
Posted Wed June 26, 2002 @05:34PM
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Post Processing NAS researchers are developing Field Model (FM), a software component for mesh and field data. FM is an open source software project that allows scientists to share data from a variety of scientific disciplines.

The FM design benefits from experience with previous software component efforts, such as the Field Encapsulation Library (FEL). One way that FM differs from FEL is in its open source approach to distribution.

Fields based on computational meshes are defined by associating values with the cells. In computational fluid dynamics (CFD), common examples of fields are the momentum, density, and energy fields surrounding an aircraft.

In analyzing simulation results, scientists are often interested in values derived from the fundamental state variables. For example, they might be interested in velocity or vorticity values derived from the density and momentum fields output by a simulator. Field Model includes classes that provide lazy derived field capability to compute the derived values only as needed, avoiding unused computations and saving on memory requirements.

Working with the NASA Ames Commercial Technology Office, the NAS Data Analysis group has established Field Model as an open source effort. By embracing an open approach, the NAS team hopes to encourage high-performance computing community participation and contributions.

The Field Model project is based at SourceForge.

( Post Comment | Research )

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