I am new to Elmer and need to learn it especially for flow simulations. So I am very interested in your example. Where can I find the forum post with the "trick" and can you share your simulation file?RatonLaveur wrote: ↑Thu Feb 25, 2021 3:02 pm By the way: solving flow is rather tricky with Elmer specifically. I will elaborate on that in another forum topic. (Has to do with when Non-linear Newton method kicks in, usually wild divergence ensues---Raback knows the trick).
Elmer 9.0 is published
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Re: Elmer 9.0 is published
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Re: Elmer 9.0 is published
Hi uwestoerh
In that thread i have opened a few considerations on CFD with Elmer https://forum.freecadweb.org/viewtopic.php?f=18&t=56151
The trick i found on Elmer forums. My second post in the thread has a link.
It has to do with the NonLinearNewton parameters. Easentially preventing the Newton method from ever occuring. Not sure why yet. Raback knows probably.
In that thread i have opened a few considerations on CFD with Elmer https://forum.freecadweb.org/viewtopic.php?f=18&t=56151
The trick i found on Elmer forums. My second post in the thread has a link.
It has to do with the NonLinearNewton parameters. Easentially preventing the Newton method from ever occuring. Not sure why yet. Raback knows probably.
Re: Elmer 9.0 is published
Many thanks. I will try this out.RatonLaveur wrote: ↑Sun Mar 21, 2021 10:11 am In that thread i have opened a few considerations on CFD with Elmer https://forum.freecadweb.org/viewtopic.php?f=18&t=56151
The trick i found on Elmer forums. My second post in the thread has a link.
However, in my use cases I only have laminar flows since I make microfluidics.
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Re: Elmer 9.0 is published
Oh I'm very interested in what challenges you'll tackle. Elmer can do 2D/3D at will. One "weakness" is in FreeCAD it's not yet straightforward to mesh Hex elements, generally CFD likes Hexes.
I've done most of my work simulations using the CfdOF workbench, but I'm pushing through Elmer. Don't know why, i just like it.
I've done most of my work simulations using the CfdOF workbench, but I'm pushing through Elmer. Don't know why, i just like it.
Re: Elmer 9.0 is published
This tutorial works for me on Catalina 10.15.7.Jee-Bee wrote: ↑Fri Mar 12, 2021 3:38 pm does anybody know if this one is still working?
https://github.com/ElmerCSC/homebrew-elmerfem
Re: Elmer 9.0 is published
Thanks for your response i check it out!!