TAGGED: Discovery AIM, mesh
June 30, 2020 at 4:36 pmgalkhamisSubscriber
I am having a difficult time meshing this part on my model. it is 0.2mm think layer. Are there specific meshing settings that I must have since the thickness is very small compared to the other dimensions of the body?🛈 This post originally contained file attachments which have been removed in compliance with the updated Ansys Learning Forum Terms & Conditions
July 1, 2020 at 9:42 amNaresh PatreAnsys Employee
The thickness of the model is 0.2mm and the length is 18 meters. The thickness is extremely small as compared to the other dimensions. You will have to use extremely small sizes to mesh this model. I tried generating hex mesh with edge sizings but it is failing on the curved regions. Hex mesh could help to keep the mesh count on lower side. If tet mesh is to be generated, you need to use proximity sizing function with mimimum 3 elements across the thickness. You will also have to specify the proximity min size such that it will create 3 elements in the model. Looking at the thickness and the overall dimensions, I doubt if the model will mesh. And even if it gets meshed, you will end up with extremely high mesh count.
To tackle this problem I would suggest the following:
1. Increase the thickness of the layer
2. For such thin layers where meshing is challenging or results in huge mesh count, such bodies are modeled using Shell Conduction approach. In shell conduction modeling, you don't need to have a solid body for the thin region. SO there is no need to mesh such thin bodies. However, this modeling method is available in ANSYS Fluent and not in Discovery AIM. So you may want to use Fluent in this case.
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
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.
© 2023 Copyright ANSYS, Inc. All rights reserved.