Tips & Tricks

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.

How do I create an SEA cavity using shrinkwrap?
How to create FE acoustic cavities with complex shapes
Ricardo Alvarez
CFD, Vibro-Acoustics
67

Auto Empty Folders option in CFD-GEOM
When importing large models into CFD-GEOM, you may notice that certain entities listed in the Model Manager may have a red box around them.
Abraham Meganathan
CFD
14

Adding Baffles to an Unstructured domain in CFD-GEOM
While meshing the geometries of industrial significance like mixing tanks, reactor and heat exchangers, we may encounter baffles which have negligible thickness but significant area to impact the physics of the problem in terms of momentum and heat transfer. These...
Abraham Meganathan
CFD
32

Using Region sources in CFD-VisCART
In order to control grid spacing at user-defined locations, mesh sources are a common tool in CFD-VisCART (Figure 1). Point, Line, Curve, Plane, Box and Surface sources have been available for several years. Cylinder and Sphere sources were introduced a few years back...
Abraham Meganathan
CFD
29

New Mesh Sources in CFD-GEOM for Triangle and Tetrahedral meshing
Corner Point Sources, Surface Interior Sources and Tet Sources have been available in CFD-GEOM for several years, allowing for refinements during certain phases of mesh generation.
Abraham Meganathan
CFD
51

Automatic covering of larger unwanted holes in CFD-VisCART
CFD-VisCART meshing automatically closes or covers holes in the geometry that are smaller in size than the cell size specified at the surfaces. To cover LARGER holes, the ‘Max Hole Size to Cover’ feature can be used. This feature, introduced in...
Abraham Meganathan
CFD
8

Working with Solids in CFD-GEOM - Part 1: Boolean Operations
Given that today’s users may import several complex parts into CFD-GEOM, this tip will demonstrate how to use the Solid Boolean Union Option to combine several parts into one.
Abraham Meganathan
CFD
23

Grouping parts during data import in CFD-VisCART
When dealing with complex industrial models such as cars and airplanes, hundreds of parts need to be managed. Each one of these parts may also be subdivided into different components. In order to easily manipulate these different parts and components in CFD-VisCART,...
Abraham Meganathan
CFD
11

CFD-VisCART: Mesh Extrusion
In most CFD simulations, it is required to place inlets/outlets far enough from the region of interest in order to reduce their influence on the solution. In many applications, this can be done by extruding existing inlets/outlets BC patches away from the domain.
Abraham Meganathan
CFD
9

Preserving boundaries between patches with CFD-VisCART’s Single Domain mesher
The ‘Preserve Features’ option does very well in preserving features between geometry patches – as long as the patches are not coplanar (dihedral angle = 0) or include a very small dihedral angle between them.
Abraham Meganathan
CFD
10