June 7, 2023 at 1:10 pmV FSubscriber
I'm pretty new with Ansys Fluent and I need help. I want to simulate water droplets that evaporate and then change the relative humidity of the air.
I know how to evaporate droplets and how to set up relative humidity, but for using both you need the multiphase model, DPM and species transport, which results in an error regarding the droplets. They cannot be tracked or modified.
I found an old guid that says it's possible as long as you enable the "Message Passing" option in the DPM options. I cannot enable it and I don't know why.
The guide: https://www.afs.enea.it/project/neptunius/docs/fluent/html/ug/node717.htm
So is it even possible? And if it is, how?Thank you so much guys.
June 7, 2023 at 1:33 pmRobAnsys Employee
OK, first off don't look at the AFS copy of the documentation. It's ancient, so you'll miss out on rather a lot of years of development. You need DPM & species (as you've said). So, set up the usual air+vapour mixture and add water droplets via DPM. Couple the DPM with the continuous phase and then revisit the DPM materials panel. That's about all there is to it: if you check the combustion tutorials you'll see much the same process but you aren't trying to burn water.
- 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.
- Floating point exception in Fluent
- What are the differences between CFX and Fluent?
- Heat transfer coefficient
- 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
- Suppress Fluent to open with GUI while performing in journal file
- Mesh Interfaces in ANSYS FLUENT
- Time Step Size and Courant Number
- error: Received signal SIGSEGV
© 2023 Copyright ANSYS, Inc. All rights reserved.