Virtual product modeling is becoming a cornerstone in modern product development. Still a lot remains to be done before ease of use is achieved in the product development cycle of design, simulation, validation and production preparation. In most modern industries one finds an extensive use of CAD-systems in the design process. However, when the virtual models are to be used for establishing physical properties and behavior, then there is often a large gap between the CAD geometry description and the model description(s) needed for computations. For a number of standard situations corresponding solutions are integrated into CAD-systems. For more special domain-oriented computations, however, this is most often not the case. Similar problems with the geometry descriptions can also occur in production preparation, when the results have to be translated to a geometry format suitable for manufacture.

Evolving interfaces and surfaces occur in a large variety of fields. Examples include material sciences, fluid dynamics and image processing. The research activity on this topic has seen a remarkable increase in recent years, in particular related to the development of level set methods. Still, there are many unresolved problems, for instance in tracking the geometry of interfaces in two-fluid systems with high density ratios. As its other main activity besides the CAD-related issues, this working group wants to address applications of methods for evolving interfaces and their possible impact on industrial problems.

Subjects:
· CAD-interfaces
· CAD and simulation
· Quality of CAD-models
· Simplification, repair and cleaning of CAD-models
· Output from simulation and shape optimization in the form of CAD-models
· Representation and tracking of evolving surfaces
· Level set and related technologies
· Applications of evolving surfaces

Past Event:

Workshop on 'Industry challenges in geometric modeling and CAD' to be held in Darmstadt, Germany on 31 March and 1 April 2003
Workshop on 'Industrial challenges in the simulation of evolving interfaces' to be held in Brussels, September 1-2, 2003