November 5, 2018 at 6:38 amnagesh56Subscriber
I want to find the height of liquid rise in porous media due to capillary action for given values of porosity and permeability of the copper foam. Which model is suitable for this and how to do the simulation?.
November 6, 2018 at 11:20 amRobAnsys Employee
There are models in Fluent for the wetting resistance in the Porous models, but I don't think that's what you're after.
Given the porous media model is a lumped resistance I also don't think that's suitable to find the height.
If you need to find the rise height you may need to model the structure and then use VOF to see what happens: this isn't going to be practical with the student licence given the cell count available. You'll also have to figure out a way to create the structure.
Moving to Fluids.
November 19, 2018 at 6:03 amnagesh56Subscriber
Thank you for replay, but I want to know that there are some options available to simulate the porous media by defining the properties of the porous media the region. So can we do by this method or there is some other way is there to approach the above problem. Please give me a brief description.
November 19, 2018 at 6:14 amDrAmineAnsys EmployeeSame as my colleague said the porous media is lumped parameter model where non linear effects such as wetting effects and capillary pressure might he taken into account but the structure itself won't be resolved.
November 19, 2018 at 7:33 amnagesh56Subscriber
So without actually modelling the structure, it is not possible to find the liquid rise. This is what you mean to say right. But for my case modelling of copper foam is a very difficult only option I have is finding the properties of porous media and applying to the porous region. So can I approach this way? please mention if you have some other idea to tackle this problem.
November 19, 2018 at 8:17 amDrAmineAnsys Employee
Check the non-linear porous media (Corey Model) in Fluent if it is enough for you.
January 21, 2019 at 7:33 amnagesh56Subscriber
Do I need to give the viscous resistance of porous media as a udf or giving the value is sufficient?
January 21, 2019 at 9:04 amDrAmineAnsys Employee
Your choise the porous parameters can be given as constant or dependent on flow conditions or configuration. Constant values are the standard way.
- 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.
- Suppress Fluent to open with GUI while performing in journal file
- Floating point exception in Fluent
- What are the differences between CFX and Fluent?
- Heat transfer coefficient
- Getting graph and tabular data from result in workbench mechanical
- The solver failed with a non-zero exit code of : 2
- Difference between K-epsilon and K-omega Turbulence Model
- Time Step Size and Courant Number
- Mesh Interfaces in ANSYS FLUENT
- error in cfd post
© 2023 Copyright ANSYS, Inc. All rights reserved.