Tips & Tricks

Using Levels in CFD-GEOM
Handling large models in CFD-GEOM is quite easy, but often there are thousands of entities, making it hard to sort out particular entities among them all. For cases like these, a visual grouping mechanism in CFD-GEOM makes viewing such models very efficient. Levels in CFD-GEOM are used as a visual grouping tool, allowing you to Show/Hide certain parts of your model easily and quickly
Abraham Meganathan CFD

Copy/Paste Viewpoint tools
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 zoom level.
Abraham Meganathan CFD

Hybrid Meshing in CFD-GEOM
Hybrid meshes can help in optimizing grids in complex geometries allowing for structured meshes in one part of a geometry, while using unstructured grids in more complex regions. This tip will show you how to create a simple hybrid (structured/tetrahedral) mesh system in CFD-GEOM, as shown in Figure 1.
Abraham Meganathan CFD

Motion Model Dependencies in CFD-FASTRAN
Moving-body models available in CFD-FASTRAN are highly suited to simulate complex prescribed and six-degree-of-freedom (6DOF) motions of rigid bodies. In many engineering problems, this translates to multiple bodies moving relative to one another.
Abraham Meganathan CFD

Creating Multiple Blocks from a Single Mouse Click
Computational Fluid Dynamics initiated in structured grid context for smooth and orthogonal structured grid on relatively simple geometries. Today, CFD has evolved encompass multi block and overlapping structured grid techniques for complex geometries, along with other mesh types such as tetrahedrals, polyhedrals, and prisms.
Abraham Meganathan CFD

Visual Display of Bad Cells in CFD-VisCART
Most models have certain parts or regions where the grid density needs to be higher than other areas to accommodate for steep curvatures, sharply changing topology, etc.
Abraham Meganathan CFD

Handling Multiple holes for surface operations in CFD-GEOM
In the past, cutting or filling holes in surfaces with CFD-GEOM required a two step process; 1) pick the surface 2) pick the closed set of curves that forms the hole. Not a bad process but in the case of having to cut the surface with multiple holes, it was quite inefficient since you could only cut one hole at a time.
Abraham Meganathan CFD

Edge Substitution for surfaces in CFD-GEOM
The Edge Substitution tool in CFD-GEOM is designed to make it easy to modify surface boundaries. It allows you to replace the lines/curve of a surface with edges, and vice versa.
Abraham Meganathan CFD

Local Curve Meshing in CFD-GEOM
Computational geometries/assemblies often involve parts that may vary in scale. Although unstructured surface meshing adapts to the size of the geometry, in some cases there may not be sufficient grid density in specific regions of your model.
Abraham Meganathan CFD

Digital Signal Processing using CFD-VIEW
Signals (stream of data) obtained from physical or numerical experiments often require additional processing to understand/interpret the physics they represent. The processing of signals through digital means is termed Digital Signal Processing (DSP).
Abraham Meganathan CFD