FLUENT 6.3 Delivers Comprehensive CFD for Engineering Simulation

Release Features New Modeling Options Resulting in Greater Speed and Flexibility

SOUTHPOINTE, Pa., Nov. 30 /PRNewswire-FirstCall/ -- ANSYS, Inc. (NASDAQ: ANSS), a global innovator of simulation software and technologies designed to optimize product development processes, today announced the release of the latest version of its computational fluid dynamics (CFD) software, FLUENT(R) 6.3. With this release, ANSYS continues to deliver on the expectation for comprehensive CFD technology. New capabilities have been added to FLUENT 6.3 that broaden its applicability to a widening range of industrial processes. It also delivers important core numerical enhancements that offer improved accuracy, efficiency and robustness. In all, more than 100 new features are available, enhancing FLUENT software's capabilities in many areas including moving mesh, reacting flows and multiphase flows. FLUENT 6 technologies are now part of the ANSYS(R) CFD suite, from the company's recent acquisition of Fluent Inc.


"With FLUENT 6.3, ANSYS continues to evolve the standard for commercial CFD software, both through the expansion of existing models and the addition of new features that allow difficult engineering problems to be solved more robustly, faster and with greater flexibility than ever before," said Ferit Boysan, vice president and general manager at ANSYS, Inc. "This release enhances the ability of ANSYS to provide world-leading simulation capabilities to customers."

The main focus of this release is on core solver improvements. A pressure- based coupled solver joins the existing solver options and improves solution efficiency as well as convergence and robustness for many cases. Polyhedral meshes, new in FLUENT 6.3 software, allow the flexibility of an unstructured mesh to be applied to complex geometries without the overhead associated with a large tetrahedral mesh. The automatic nature of the techniques used to create polyhedral meshes saves the user time, and, since a polyhedral mesh contains many fewer cells than the corresponding tetrahedral mesh, convergence is faster. Additionally, in support of the ongoing FLUENT commitment to parallel processing, improvements to parallel efficiency and flexibility have been implemented including speed improvements for reading and writing case and data files. HPC customers can also benefit from running FLUENT 6.3 on 64-bit Windows platforms such as Windows Compute Cluster Server 2003.

"The polyhedral meshing function in FLUENT 6.3 has been especially useful in accelerating simulations. For one case, the mesh size went down from about 800,000 cells to 150,000 and the solution speed went up accordingly. For scoping a preliminary solution, this coarse mesh is ideal," said Keith Gawlik, senior engineer at National Renewable Energy Laboratory (NREL). "Overall I'm very happy with the new version. It also works great on multiprocessor platforms."

With FLUENT 6.3, industry-leading dynamic mesh capabilities for modeling moving objects, such as pistons and valves in IC engines and impellers in baffled mixing tanks, can now be applied to a series of related steady-state simulations, reducing the amount of time that a user spends on pre-processing. Additional new functionality adds flexibility for simulating complex object motion. Reacting flow simulations benefit from new models for slow chemistry and micromixing. Emissions modeling is more comprehensive through the addition of new SOx and NOx modeling capabilities. Multiphase modeling continues to be an area of focus: FLUENT 6.3 offers improvements to the accuracy of transient multiphase solutions as well as enhancements that extend the regimes in which multiphase models can be applied.

Another improvement in FLUENT 6.3 is the ability to work with third-party CAE packages. Now it is easier to import and export files to and from other analysis tools (for fluid structure interaction, for example). These and many other features make FLUENT 6.3 a significant addition to the ANSYS software suite.

For downloadable, high-resolution images, visit www.ansys.com/newsimages.

About ANSYS, Inc.

ANSYS, Inc., founded in 1970, develops and globally markets engineering simulation software and technologies widely used by engineers and designers across a broad spectrum of industries. The Company focuses on the development of open and flexible solutions that enable users to analyze designs directly on the desktop, providing a common platform for fast, efficient and cost- conscious product development, from design concept to final-stage testing and validation. The Company and its global network of channel partners provide sales, support and training for customers. Headquartered in Canonsburg, Pennsylvania, U.S.A., with more than 40 strategic sales locations throughout the world, ANSYS, Inc. and its subsidiaries employ approximately 1,400 people and distribute ANSYS products through a network of channel partners in over 40 countries. Visit www.ansys.com for more information.

About Fluent Inc.

Fluent Inc. is a wholly owned subsidiary of ANSYS, Inc., (NASDAQ: ANSS), one of the world's largest providers of computational fluid dynamics (CFD) software and consulting services. Fluent software is used for simulation, visualization and prediction of fluid flow, heat and mass transfer and chemical reactions. It is a vital part of the computer-aided engineering (CAE) process for companies around the world and is deployed in nearly every manufacturing industry. Using Fluent software, product development, design and research engineers build virtual prototypes and simulate the performance of proposed and existing designs, allowing them to improve design quality while reducing cost and speeding time to market.

ANSYS, ANSYS Workbench, CFX, AUTODYN, FLUENT and any and all ANSYS, Inc. product and service names are registered trademarks or trademarks of ANSYS, Inc. or its subsidiaries located in the United States or other countries. ICEM CFD is a trademark licensed by ANSYS, Inc. All other trademarks or registered trademarks are the property of their respective owners.

Web site: http://www.ansys.com/

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