August 5, 2019 at 4:13 pmRLester5Subscriber
When going to initialize this in setup I get a floating point error.
I think this must be due to the mesh, but before I completely re-do it, I was going to ask for some advice on how to correctly mesh it in terms of values I am trying to achieve for aspect ratio, skewness, etc. Or where I should be looking for areas of concern.
3D Object. 4 individual FFF parts. 3 individual volumes.
Inlet - Outlet system.
Inflation and face sizing are all applied to fluid domain of the larger pipe (blue left on picture below)
Automatic sizing is applied to the same pipe, but includes the walls of the pipe as well.
Normal View Mesh:
Section view Mesh:
Fluid Domain Mesh:
August 6, 2019 at 3:09 pmRobAnsys Employee
Cell quality isn't great, but is just about acceptable. Check you have 4-6 cells minimum through all the narrow gaps and that the growth rate isn't too high.
August 7, 2019 at 4:20 pmRLester5Subscriber
Okay, so then why am I getting a floating point error? Doesn't that specifically reference an error in the mesh?
also when you say 4-6 cells minimum through gaps, do you mean in an edge sizing or method?
August 8, 2019 at 9:45 amRobAnsys Employee
No, I mean you need 4-6 cells across the gap. Proximity size function may be useful otherwise set the surface & volume mesh sensibly.
Floating point error tends to mean the solve isn't happy: could be mesh or boundary conditions. Always start by checking the mesh, then work through the rest of the model.
- You must be logged in to reply to this topic.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- ANSYS Workbench Measuring within Design
- how to improve the inflation quality at sharp corners?
- check element type
- The mesh file exporter could not resolve cyclic dependencies in overlapping contact regions error
- How to resolve Mesh Failure
- Meshing Error
- Error in meshing
- Conformal vs Non-Conformal Mesh
- execution error inside the mesher. The process suffered an unhandled exception or ran out of memory
- inflation created stairstep mesh at some location
© 2023 Copyright ANSYS, Inc. All rights reserved.