Pre-Processor : Geometry

DesignModeler

In modern product development, the CAD system serves as the linchpin. The same CAD model initially generated by engineers and designers is often used in numerous other downstream applications. However, while most commercially available CAD packages are configured to support manufacturing activities, few offer the functionality required by CAE tools.

Because the data requirements for simulation differ significantly from those of rapid prototyping and CNC, engineers have traditionally utilized a variety of approaches to "bridge the gap" between CAD and simulation. While these methods have worked reasonably well to produce simulation-ready CAD models in the past, they contain a number of inherent drawbacks and limitations. The DesignModeler for CFD Applications module from ANSYS, Inc. offers a viable alternative approach. CFD Geometry Creation and Meshing functions add on to ANSYS CFX and contains the tools necessary to modify an attached or imported model to suit the requirements of a desired simulation. The following capabilities are vital for modifying CAD models in order to accomplish simulation objectives. DesignModeler for CFD's ability to successfully complete these operations makes it an excellent tool for creating a common process for these types of geometry manipulation.

Product Features

• Native CAD access and import of common geometry formats
• Access to geometry parameters with bi-directional association to native CAD systems
• Able to create a model for simulation if no CAD system is available
• Fully parameterized modeling with 2-D sketching tools and 3-D feature creation tools
• Solid modeling and Boolean operations
• Named selection of CAD surfaces and solids for later use in Meshing and Physics
• Model Defeaturing/Simplification
• Encosure creation for external flows
• Common source of geometry for CFD and other analyses (e.g. Stress, Thermal, Emag) within ANSYS Workbench
• Geometry export to native CAD, Parasolids and ACIS

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