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Physical Optics (PO) VS. Geometrical Optics (GO)
The purpose of this article is to compare two High Frequency formalisms, namely Physical Optics & Geometrical Optics, with a brief overview of their advantages & drawbacks.
Jean-Claude Kedzia
Electromagnetics
144

Model clipping feature in CFD-VisCART and CFD-GEOM
For better visualization of the geometry and mesh, a model clipping feature was introduced in CFD-VisCART and CFD-GEOM V2013.0. The following sections illustrate the usage and benefits of this feature.
Abraham Meganathan
CFD
12

Improve Productivity Using Scripts [Video Format]
As simulations become more integrated with the design process, engineers often spend time on repeated operations that do not contribute to their productivity. There is a need for tools that could capture, preserve and transfer the knowledge within the organization or...
Abraham Meganathan
CFD
33

How to report and talk about simulation time in an objective manner
Reporting or talking about simulation time is a difficult subject. In the article a way to manage this problem in an objective manner is given.
Harald Porzner
Welding & Assembly
710

Materials in the database - Which material properties to use with respect to the three methods to simulate the heat effects of welding
A material is described with exactly one set of material properties. In simulation engineering - depending on the applied method and the moment in time when the simulation is carried out in the product development cycle - only subsets of a full material data set might...
Harald Porzner
Welding & Assembly
892

The transient method – the third out of three methods to simulate the heat effects of welding
In order to meet different requirements from first design to start of production, three different methods are available in the Virtual Welding & Assembly Suite from ESI. The third one – the transient method – is used when not only distortion but also residual...
Harald Porzner
Welding & Assembly
586

The instantaneous method – the second out of three methods to simulate the heat effects of welding
In order to meet different requirements from first design to start of production, three different methods are available in the Virtual Welding & Assembly Suite from ESI. The second one – the instantaneous method – is used when not only distortion but also residual...
Harald Porzner
Welding & Assembly
509

The shrinkage method – the first out of three methods to simulate the heat effects of welding
In order to meet different requirements from first design to start of production, three different methods are available in the Virtual Welding & Assembly Suite from ESI. The first one – the shrinkage method – is used in the feasibility and planning phase. Goal is...
Harald Porzner
Welding & Assembly
686
1

Boundary layer meshing with CFD-ACE+  [video format]
The accuracy of a CFD solution is strongly dependent on how well the mesh resolves geometry and flow features. This is especially true for near wall regions (boundary layer) where viscous forces are not negligible compared to inertial forces.
Abraham Meganathan
CFD
20

CFD-FASTRAN/CFD-ACE+ coupling for thermal environment simulations
In certain applications, different regions of the computational domain experiences flow conditions that are so different that it is very difficult for a single solver to produce accurate results at the extremes. In many situations, such problems can be separated and...
Abraham Meganathan
CFD
41