CFD-ACE+
CRIPTE
SYSTUS
VA One
Visual-Environment
SYSWELD
Here you will find articles on how to solve specific issues related to ESI's software solutions. Missing ESI products will be added progressively. Each article has a short abstract which is accessible to everyone. As logged users you can see the full article with all attached screenshots, and you can post comments related to each article.
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.
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.
![Improve Productivity Using Scripts [Video Format]](https://myesi.esi-group.com/sites/default/files/styles/related_image/public/tips_tricks/4336/image1.jpg?itok=tGevsVbD "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...
![Boundary layer meshing with CFD-ACE+ [video format]](https://myesi.esi-group.com/sites/default/files/styles/related_image/public/tips_tricks/4330/image1.jpg?itok=ROIanEOF "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.
There is a very fast and easy way to verify what software version you are running for your ESI CFD applications. You most likely know that this information is available for the GUI by clicking on 'Help → About ...', and for solvers by looking...
The mesh has a great influence on the solver convergence and solution of every CFD Simulation. The user is strongly advised to check the quality of a numerical mesh.
Usually, when performing a particular simulation, it is necessary to compare the results of similar models or the same model at different operating conditions. It is important that the two (or more) cases being compared be viewed from the same angle and at the same...
![Using "Visual Scaling" for Models with Drastically Varying Length Scales](https://myesi.esi-group.com/sites/default/files/styles/related_image/public/tips_tricks/4217/ut567_1.gif?itok=NpmWl4d_ "Using "Visual Scaling" for Models with Drastically Varying Length Scales")
For models that have drastically varying length scales, it can be difficult to create the grid, setup a model, and post-process the results. CFD-GEOM, CFD-ACE-GUI and CFD-VIEW have a "Visual Scale" capability that can significantly help when working...
Parametric studies are an important aspect of CFD analysis. Parametric studies are used to perform trend base analyses, optimize the deign of a device, and/or to study the affect of different parameters on a process (What if? type analysis).
Have you ever wanted to find the differences between two DTF files? If you have, then you will probably be interested in a DTF utility included in your ESI Software installation. The utility is called dtf_diff and can be found in your UTILS_2009.0/bin directory.