September 2014: Geometry Techniques for CFD

The overwhelming majority of issues that prevent a smooth Computational Fluid Dynamics (CFD) process are related to geometry. If geometry issues cause you headaches, then read on for a series of articles that describe techniques to help you navigate around common problems. Once you are done, unwind with a look at how nature uses similar visualizations to those found in CFD.

Small Geometry Feature Causing Unnecessary Mesh ClusterSmall Geometry Feature Causing Unnecessary Mesh Cluster

Small Feature Removal for CFD

In preparing geometry for a CFD simulation you will sometimes find small geometry features (edges and faces) that are irrelevant for your simulation. To resolve a small irrelevant feature would require a large number of small mesh cells that would be a waste of precious computing resources. Keep reading to find out how to detect and remove such features. Read more >>

Sliver Treatment Strategies for CFD

Extremely thin, high-aspect-ratio geometry faces (also known as slivers) can cause problems for meshing and adversely affect CFD simulation stability. Learn some strategies to identify and deal with slivers to maximize your CFD productivity. Read more >>

How to Fix Small Acute Angles for CFD

Small acute angles in your geometry, such as those found where a tangential surface meets a cylindrical surface, can lead to poor results from your CFD simulation. Keep reading to learn how to identify and remedy acute angles. Read more >>

Fluid Visualization in Nature

On the rare occasions that CFD-ers unhitch from their Matrix and venture outdoors, it is only to see that nature is copying the visualization techniques we take for granted in CFD. Read more >>