CAD Readers, Geometry Conditioners, Surface Wrapping Technology Dramatically Improve Productivity

June 29, 2006, Southpointe, PA, USA

Fluent Inc., a wholly-owned subsidiary of ANSYS, Inc. (NASDAQ: ANSS), a global innovator of simulation software and technologies designed to optimize product development processes, today announced new releases of TGrid 4.0, GAMBIT 2.3 and 3Matic-for-Fluent 1.0, all major upgrades to Fluent’s preprocessing capabilities. These three products provide several new functionality advantages that enable Fluent users to proceed from CAD geometries to Fluent CFD solvers in unprecedented timescales.

TGrid 4.0 has been substantially improved, with a powerful Surface Wrapper added to its existing surface and volume meshing capabilities. Users can now wrap up multiple dirty geometry files from several sources into single, connected, high-quality surface mesh in record times. A number of automated functions are available to optimize the process, depending on the problem at hand. The TGrid Surface Wrapper has reduced meshing times dramatically for a full range of industrial benchmark cases in the Automotive, Aerospace, Biomedical, Oil & Gas and Built Environment industries.

The 3Matic-for-Fluent software from Materialise Inc. is a complimentary conditioning module for converting hundreds of files from mixed geometry sources in native or standard CAD file formats (CATIA, UG, Pro/E, STEP, IGES), or in faceted formats (STL, WRML), into an optimal triangular meshing format for TGrid 4.0's new Surface Wrapper. This cleanup process ensures that each CAD part is fully connected, of minimal size, and with sufficient resolution to capture the underlying geometrical details. 3Matic-for-Fluent compliments TGrid 4.0 by allowing users to work more efficiently during the pre-wrapping phase of their preprocessing efforts.

Additionally, a comprehensive new set of CAD Readers in GAMBIT 2.3 allow users to bring native geometry into GAMBIT more effectively. For example, geometry operations like clean-up, construction, design modification and decomposition now work directly on all geometric representations. New, automated tools lead to significant improvements in meshing speed, quality and size distribution. Several enhancements in the areas of size functions, boundary layers, and hybrid meshing ensure that GAMBIT continues to be a leading CFD preprocessing software in the materials, chemicals, HVAC, power and process industries.

“Every user of Fluent’s preprocessing software will experience multiple benefits from these new releases. Several users have reduced the time needed for geometry and meshing task flow processes by an order of magnitude with these new tools. Preprocessing applications that used to take weeks are now being completed in a day. Our new preprocessing software delivers impressive industrial solutions to some of the most intractable meshing problems facing the Fluent user community, like underhood and engine geometries, HVAC design environments, biomedical passageways, oil drill bits, as well as many complex aerospace geometries, all within industrially relevant timeframes,” said Ferit Boysan, vice president and general manager, Fluids Business Unit at ANSYS, Inc.

About Materialise

Materialise, with headquarters in Belgium, started in 1990 in the sector of rapid prototyping. Since that time, the company has experienced an exponential growth. Today, its software division develops innovative, industry-leading applications enabling advanced use of rapid prototyping, tooling and manufacturing techniques. Materialise is a trusted software partner worldwide for the leading companies of the automotive, aerospace and consumer electronics industries. Materialise has offices all over the world and the largest software development team in the RP sector. 3Matic is the latest innovative product of Materialise. It implements so-called 'digital' CAD, a shorthand for CAD-operations working directly on triangle files. 3Matic thus allows direct transformation of scanned data into a file ready for FEA/CFD or rapid prototyping/manufacturing. Likewise, it allows for realizing design changes and remeshing directly on mesh files.

For general enquiries contact:

Nele Motmans

Materialise

+32-16 -39 66 11

nele.Motmans@materialise.be

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.

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.

About Fluent Inc.

Fluent Inc. is a wholly owned subsidiary of ANSYS, Inc., the world's largest provider of computational fluid dynamics (CFD) software and consulting services. Fluent's 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's 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.

For enquiries about ANSYS or Fluent, contact:

Media:

Kelly Wall

724-514-3076

kelly.wall@ansys.com

Investors:

Lisa O’Connor

724-514-1782

lisa.oconnor@ansys.com