CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Programming & Development

ion & electron diffusion - how to proceed/improve simulation?

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 17, 2020, 09:26
Default ion & electron diffusion - how to proceed/improve simulation?
New Member
Join Date: May 2020
Posts: 2
Rep Power: 0
shinigamirem is on a distinguished road

I am very new to OpenFOAM and in the last months i have established a simulation of Fick's diffussion equation. My interest is to simulate the ion concentration in a solid electrolyte. For this i used the laplacianFoam and changed the temperature to a concentration with a constant diffusion coefficient in the transport properties. My mesh is so far one block created with blockMesh.

Now i want to further improve my simulation and i am not sure how to proceed. My new improvements i want to implement are:
  • including the electrodes which is a different material (solid) as new blocks
  • having two different diffusion coefficients for the two materials. Later on i want to make them concentration dependent
  • including a migration term into the simulation from the Nernst-Planck equation
  • limit the concentration as negative concentration makes no sense
  • including electron diffusion depending on ions

This should be a preview where i want to go, so the recommendations can be based on them.

The limit of concentration is what i am working on right now, which i wanna solve through including the fvOption. Therefore i would need a thermophysical model in OpenFOAM. Hard to choose for a beginner, which is why i reaching out for help. I am still not very settled with OpenFOAM yet, which is why i have not a good overview on the possibilities and resources which may fit best for me.

I hope someone can help and give advice and/or recommendations

Thank you very much!
shinigamirem is offline   Reply With Quote


diffusion coefficient, fick law, laplacianfoam, nernst

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
Problem simulating the temperature rise in a composite material (chtMultiRegionFoam) Adam_K OpenFOAM Running, Solving & CFD 2 March 27, 2019 06:51
Harmonic average of Diffusion Tensors in Finite Volume Method Yurie_Breschnef Main CFD Forum 4 September 6, 2018 04:51
fluent in diffusion simulation appleyy FLUENT 4 September 16, 2017 04:43
Regarding scaling of a diffusion simulation NachtErfinder Main CFD Forum 1 June 3, 2016 10:08
Control simulation to apply different fields with chtMultiRegionFoam jmdf OpenFOAM Running, Solving & CFD 0 February 29, 2016 07:05

All times are GMT -4. The time now is 18:20.