We’re taking a survey to learn about what mesh types (structured, unstructured, hybrid, Cartesian, high-order, overset, etc.) are most widely used and how big those meshes are. Can you help us by spending 5 minutes sharing your information? We will post the results here on the blog.
Do you remember CFD in the 1980s? Of course you don’t, unless you’re a fossil like me. Back in the day structured hex grids (aka mapped meshes) were the only game in town. And we liked it.
That’s why we started writing the Gridgen software; to meet the need to generate multi-block, structured grids for external aero CFD.
Then CFD evolved and meshing technology evolved along with it. Structured grids are great – when you have the time to generate them. Unstructured meshes offered quicker turnaround and viscous resolution could be obtained with near wall layers of prisms or hexahedra. Overset grids offered to improve the turnaround time for structured grids while retaining all their benefits.
And today we see solver developers looking into high-order methods that require the generation of high-order meshes. Plus there are a plethora of Cartesian and polyhedral mesh types that many practioners are able to exploit.
What’s the catch? No flow solver supports all mesh types. And no mesh generator can generate all types of meshes.
How do we get any alignment between the technologies?
We start seeking alignment by quantifying the relative usage of all the various mesh types and their permutations. We’re doing that with a brief survey. And by “brief” I mean 5-minutes. That’s how long SurveyMonkey says it take to answer our questions about your use of
- structured, unstructured, hybrid, and Cartesian mesh topologies
- overset, high-order, and 2D meshes
- mesh size in terms of cell count
We will share the survey results here on Another Fine Mesh once we’ve collected all the data.
So take 5-minutes to share your meshing usage by taking the Mesh Types survey hosted on SurveyMonkey at https://ptwi.se/2r8grCc. (And while you’re at it, take a guess at what the results will show about typical mesh size.)