September 18, 2023 at 6:59 pmLucas Spak-WalsworthSubscriber
I am messing around with discovery trying to learn how use it before I start using it for a university design competition. I created an external flow simulation around an aircraft and used discovery to calculate both lift and drag forces using both refine and discover modes. Discover mode's results were about ten times smaller. I ran both simulations with the fidelity slider all the way to the right and the same set up. The resolution option for discovery mode was set to extreme. I ran the simultion on a computer with a 1660ti with 6gb of VRAM.
September 19, 2023 at 2:48 amCharudatta BandgarForum Moderator
Please go through the minimum hardware requirements for Discovery to work. As you can see the GPU required for Discovery Explore stage to work is recommended to be atleast 8Gb. It is possible that even at highest fidelity it might not be capturing smaller details, and hence the discrepancies in results. Go to size preview and see what is the feature length below which it is ignoring the geometry, and if you see that important details are ignored, try with higher VRAM GPU or with smaller domain, such that it can capture with current system specs.
Just to be on safer side, make sure to update the GPU drivers from manufacturers website (NVIDIA etc) and see if you can use the latest discovery release, as it has shown to capture the details a bit better.
- 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.
- How to work with STL file?
- Rotate tool in ANSYS Design Modeler
- section plane
- Using Symmetry in DesignModeler and Expanding the Results
- ANSYS FLUENT – Operation would result in non manifold bodies
- drawing a geometry by importing a table of points
- material properties
- Coordinates orientation
- “contact pair has no element in it.” how to resolve this problem
- Parameters not imported into Workbench 18.2 from Solidworks/Inventor
© 2023 Copyright ANSYS, Inc. All rights reserved.