Tips & Tricks

Which moments of inertia to use in added mass (MASS / ) cards ?

This tip discusses the choice of physically meaningful numbers to be used, when moments of inertia need to be specified in an added mass definition.

Some possible problems with CNTAC or TIED definitions

This tip discusses some of the reasons that might be responsible for problems with contact or tied definitions in a VPS simulation

Relation between Bulk Modulus K, Shear Modulus G, Young's Modulus E and Poisson's ratio ν

This tip explains the relations between the parameters that describe the linear elastic behavior of materials

How to convert force-deflection into true stress-strain curves?

This tip helps to convert typical tensile test data into stress-strain curves to be used in many material models of Virtual Performance Solution (VPS)

Grouping option for CFD-VIEW Data Import

Grouping feature in CFD-ACE+ GUI and CFD-VIEW comes in handy when working with complex industrial models. This feature allows putting BC patches or VC entities into a group that can be manipulated easily, to either set up properties or display specific post-processing attributes.

CFD-VIEW Scripting is easier than ever with Journaling

In addition to the numerous options and tools available via the CFD-VIEW user interface, the scripting capability of CFD-VIEW allows you to perform complex data processing on your simulation results, and gives you the option to run the post-processing phase of your simulation in batch mode.

CFD-VIEW: Working with cell-center data in batch mode

Many improvements have been made in CFD-VIEW that allows the manipulation of cell-center data. The latest cell-center data additions implemented in CFD-VIEW V2011.0 include, for example, support for the MinMax Probe and the Calculator.

"Per Pixel Lighting" display option in CFD-VIEW

When visualizing CFD solutions, it is often of interest to see a particular range of variable values, and it is therefore useful to be able to clip the surface coloring to that range, as to obtain a clearer view of the areas affected by the variable.

Visualizing decomposed model without zonal interface outlines

Running a simulation in parallel allows quicker turn around for larger and complex problems. Such parallel jobs require the computational domain to be decomposed into multiple zones. Such a multiple-zone file may be inconvenient to post-process in CFD-VIEW because zonal interface outlines will be visible and the original surfaces would have been split. As depicted in figure 1 below, these outlines can be numerous and may therefore hinder the clarity of the model.

Visualizing particle size effect on Spray particle trajectory

When analyzing flow vectors, one can get a general trend of the direction of the flow and locations of recirculation. But what if you need to specifically know where a particle will end up? Maybe release points need to be studied. Then, the size and mass can make a difference in the path a particle travels.