May 5, 2022 at 11:43 pmsaherrerSubscriber
I have a an FSI case where I am trying to find the force applied to a thin shell membrane. Under normal wall boundary conditons, I can post process normally and find the total force by using reaction forces from .rst files and they generally align with the total drag from the fluent .dat files.
However, post processing this is quite a problem once I apply porous-jump conditions. The .rst files refuse to open at all, and the drag functions that normally work for wall conditions don't apply to a porous jump condition. I am trying my best to sum the x,y,z force components from the system coupling .case files, but I find that they do not match what the mechanical output file says is transferred between the two. I would really appreciate any help.July 27, 2022 at 4:15 pmKRAdministrator
The porous jump is a special scenario where the force transferred does not include any viscous forces. The pressure drop obtained from the parameters such as thickness and coefficient defined at the porous jump condition is converted to a force vector, which is transferred via system coupling.
If you wish to read further on this, I suggest you use the following link from the Fluent User's Guide (section 42.4.2. Force transferred to System Coupling from a Porous Jump Boundary)
KarthikViewing 1 reply thread
Ansys Innovation Space
- The topic ‘How to retrieve total force transferred from a porous-jump condition in Ensight?’ is closed to new replies.
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.Trending discussions
- Floating point exception in Fluent
- What are the differences between CFX and Fluent?
- Difference between K-epsilon and K-omega Turbulence Model
- Getting graph and tabular data from result in workbench mechanical
- The solver failed with a non-zero exit code of : 2
- Time Step Size and Courant Number
- Mesh Interfaces in ANSYS FLUENT
- Suppress Fluent to open with GUI while performing in journal file
- error: Received signal SIGSEGV
- Using GPU in FLUENT
© 2023 Copyright ANSYS, Inc. All rights reserved.Ansys does not support the usage of unauthorized Ansys software. Please visit www.ansys.com to obtain an official distribution.