CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent Multiphase

Coupled fluid-fluid interface?

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   September 2, 2020, 21:10
Default Coupled fluid-fluid interface?
New Member
Carlos Álvarez
Join Date: Aug 2020
Posts: 1
Rep Power: 0
rock_md is on a distinguished road
Hello, good day.

I'm doing my master degree about water desalination by solar stills with phase change materials in the bottom. Right now I'm trying to run the simulation without PCM and whole "interesting" part is that I'm not using any multiphase models or evaporation-condensation equations Fluent has (using only UDFs, but that's another topic).

The thing is that when I run the simulation in order to get the mass fraction of water, I received an error message: "Species are not solved in neighbor cell threads" and ID of cells and boundary conditions referenced to this problem. I was reading an article that considered the water and the mixture vapor-air interface as a coupled wall, however I don't know how it will work as a wall or how to setup this in Fluent. For example I made the coupled wall for the glass and mixture interface but I don't know if it is possible to do this in a fluid-fluid interface.

I'm attaching the geometry and the mesh:

And this is a snippet from the article I mentioned before:

I believe there is something about the geometry or meshing setup. For the fluent, I activate the energy, species, radiation and turbulence models and indicate the cells for water, mixture and glass, and when I try to initialize the simulation I receive the error above with bold letters.

I will appreciate your help. I don't know if I was clear enough.

Last edited by rock_md; September 2, 2020 at 21:13. Reason: Images don't show.
rock_md is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
solid fluid coupled interface problem to find out 'h' value? Rajaero FLUENT 2 September 2, 2019 00:12
Fluid Domain moving with Rigid body Lloyd Sullivan CFX 3 August 17, 2018 09:58
My radial inflow turbine Abo Anas CFX 27 May 11, 2018 01:44
Low torque values on Screw Turbine Shaun Waters CFX 34 July 23, 2015 08:16
GETVAR Error in Multiband Monte Carlo Radiation Simulation with Directional Source silvan CFX 3 June 16, 2014 09:49

All times are GMT -4. The time now is 01:29.