Interested in programming your own schemes?

Jesper_Roland · March 24, 2021, 05:02

Hi everyone,

I would like to hear if there is any interest in a video tutorial series on how to copy and modify various schemes in OpenFOAM?

I have experience with creating my own:
- Temporal schemes
- Convection schemes
- Divergence schemes
- Laplacian schemes
- Interpolation schemes

I have in mind that the tutorials should cover how to copy the existing numerical scheme, the associated base class and how to create a new call from the fvc/fvm namespace which can be used in the solver codes. Furthermore for the cenvection and laplacian operators, I would also spent some time on showing how the coefficient matrices are assembled face by face. This is more a help to the programming beginners in OpenFOAM, that would like to link the code to theory that they learned in their basic CFD course.

Please give the post a comment to share you opinion if you are interested.

If there is enough interest I will start to consider how I can make time to create these tutorials in the future.

Cheers,

Jesper Qwist

nipinl · March 24, 2021, 11:19

It would be great if you could find time to make such tutorials. Needless to say, I'm interested.

mayursathe · March 24, 2021, 12:09

Sure! it will help people teetering on the edge and afraid to take a plunge, myself included!

Tibo99 · March 24, 2021, 12:44

I would be also interested since I'm trying to implement a new interpolation scheme myself and I'm totally lost.

Your help would be appreciated!

Best Regards,

Shibi · March 24, 2021, 13:04

10/10 approve!

10/10 would buy from udemy

mAlletto · March 26, 2021, 05:18

Maybe you can try to publish the tutorial here: https://wiki.openfoam.com/Tutorials

wa$$im · March 27, 2021, 05:32

Great Idea !

Will be very useful to me.

Thank you !

Jesper_Roland · April 21, 2021, 04:24

Hi everyone,

Thank you for the feedback.

I have decided to make an attempt on the first tutorial, which will be on interpolation schemes, when I find the time. Doing a PhD and having a 1 year old daugther leaves very little time, but I will do it as soon as I can.

I will also try to make it available at https://wiki.openfoam.com/Tutorials.

Cheers,

Jesper

Tibo99 · April 21, 2021, 08:14

Thank you very much for the update.

I'll certainly appreciate your work.

Good success and stay safe.

Best Regards,

warnerchang · April 22, 2021, 09:14

of course！

looking forward to it!

Ramkumar21194 · April 25, 2021, 05:22

Hi, i am pretty much interested in such coding tutorials of OpenFOAM C++.. please let us know when u publish/upload ur tutorials.. it would be a great resource!

Thank you in advance for ur work!

Shibi · May 19, 2021, 09:01

Any update on this?

Tibo99 · July 8, 2021, 12:19

Is it still on working progress?

Sakun · November 8, 2021, 06:04

Quote:

Originally Posted by Jesper_Roland

Hi everyone,

I would like to hear if there is any interest in a video tutorial series on how to copy and modify various schemes in OpenFOAM?

I have experience with creating my own:
- Temporal schemes
- Convection schemes
- Divergence schemes
- Laplacian schemes
- Interpolation schemes

I have in mind that the tutorials should cover how to copy the existing numerical scheme, the associated base class and how to create a new call from the fvc/fvm namespace which can be used in the solver codes. Furthermore for the cenvection and laplacian operators, I would also spent some time on showing how the coefficient matrices are assembled face by face. This is more a help to the programming beginners in OpenFOAM, that would like to link the code to theory that they learned in their basic CFD course.

Please give the post a comment to share you opinion if you are interested.

If there is enough interest I will start to consider how I can make time to create these tutorials in the future.

Cheers,

Jesper Qwist

Hi ,

is there any tutorials regarding implementing turbulence modelling ?

Tibo99 · February 9, 2022, 08:42

I'm wondering if your tutorial about implementing new/custom interpolation scheme is still on working progress? Or did you post it somewhere on GitHub or an other platform?

@Ramkumar21194 and I made an attempt but the scheme don't seem to take effect.

We share the work on GitHub here:

https://github.com/RTibo/OpenFOAM-Ne...ation-Scheme-U

If anyone see something about what could cause the issue, please share your observations.

Best Regards,

NotOverUnderated · January 7, 2024, 08:16

Quote:

Originally Posted by Jesper_Roland

Hi everyone,

I would like to hear if there is any interest in a video tutorial series on how to copy and modify various schemes in OpenFOAM?

I have experience with creating my own:
- Temporal schemes
- Convection schemes
- Divergence schemes
- Laplacian schemes
- Interpolation schemes

I have in mind that the tutorials should cover how to copy the existing numerical scheme, the associated base class and how to create a new call from the fvc/fvm namespace which can be used in the solver codes. Furthermore for the cenvection and laplacian operators, I would also spent some time on showing how the coefficient matrices are assembled face by face. This is more a help to the programming beginners in OpenFOAM, that would like to link the code to theory that they learned in their basic CFD course.

Please give the post a comment to share you opinion if you are interested.

If there is enough interest I will start to consider how I can make time to create these tutorials in the future.

Cheers,

Jesper Qwist

I appreciate your willingness to create tutorials, as there seems to be significant interest in them. However, I would gently remind that it's important to only commit to what can realistically be achieved, especially considering the time that has passed since the initial proposal.

Kind regards.

Jesper_Roland · January 8, 2024, 06:32

Quote:

Originally Posted by NotOverUnderated

I appreciate your willingness to create tutorials, as there seems to be significant interest in them. However, I would gently remind that it's important to only commit to what can realistically be achieved, especially considering the time that has passed since the initial proposal.

Kind regards.

Hi there,

You are right. I had great intentions, but I had to realise that I couldn't back it up with the hours of work that it required besides my full time job.

So to avoid future disappointment, I will state clearly that the thread is closed, and I will not be able to create any tutorials.

I cannot delete the thread, so this is the best I can do for now.

Al the best,

Jesper

March 24, 2021, 05:02	Interested in programming your own schemes?	#1
Jesper_Roland New Member Jesper R. K. Qwist Join Date: Dec 2017 Posts: 22 Rep Power: 8	Hi everyone, I would like to hear if there is any interest in a video tutorial series on how to copy and modify various schemes in OpenFOAM? I have experience with creating my own: - Temporal schemes - Convection schemes - Divergence schemes - Laplacian schemes - Interpolation schemes I have in mind that the tutorials should cover how to copy the existing numerical scheme, the associated base class and how to create a new call from the fvc/fvm namespace which can be used in the solver codes. Furthermore for the cenvection and laplacian operators, I would also spent some time on showing how the coefficient matrices are assembled face by face. This is more a help to the programming beginners in OpenFOAM, that would like to link the code to theory that they learned in their basic CFD course. Please give the post a comment to share you opinion if you are interested. If there is enough interest I will start to consider how I can make time to create these tutorials in the future. Cheers, Jesper Qwist mayursathe, nipinl, kera and 11 others like this.

March 26, 2021, 05:18		#6
mAlletto Senior Member Michael Alletto Join Date: Jun 2018 Location: Bremen Posts: 615 Rep Power: 15	Maybe you can try to publish the tutorial here: https://wiki.openfoam.com/Tutorials Shibi likes this.

April 21, 2021, 04:24	Thank you for the feedback	#8
Jesper_Roland New Member Jesper R. K. Qwist Join Date: Dec 2017 Posts: 22 Rep Power: 8	Hi everyone, Thank you for the feedback. I have decided to make an attempt on the first tutorial, which will be on interpolation schemes, when I find the time. Doing a PhD and having a 1 year old daugther leaves very little time, but I will do it as soon as I can. I will also try to make it available at https://wiki.openfoam.com/Tutorials. Cheers, Jesper nipinl, Tibo99, Shibi and 1 others like this.

April 25, 2021, 05:22		#11
Ramkumar21194 New Member Ramkumar Join Date: Nov 2014 Location: pondicherry, India Posts: 16 Rep Power: 11	Hi, i am pretty much interested in such coding tutorials of OpenFOAM C++.. please let us know when u publish/upload ur tutorials.. it would be a great resource! Thank you in advance for ur work! Tibo99 likes this.

February 9, 2022, 08:42		#15
Tibo99 Senior Member René Thibault Join Date: Dec 2019 Location: Canada Posts: 114 Rep Power: 6	I'm wondering if your tutorial about implementing new/custom interpolation scheme is still on working progress? Or did you post it somewhere on GitHub or an other platform? @Ramkumar21194 and I made an attempt but the scheme don't seem to take effect. We share the work on GitHub here: https://github.com/RTibo/OpenFOAM-Ne...ation-Scheme-U If anyone see something about what could cause the issue, please share your observations. Best Regards, Sakun likes this.

March 24, 2021, 11:19		#2
nipinl New Member Nipin L Join Date: Nov 2012 Location: India Posts: 17 Rep Power: 13	It would be great if you could find time to make such tutorials. Needless to say, I'm interested.

March 24, 2021, 12:09		#3
mayursathe New Member Mayur Sathe Join Date: Jul 2012 Location: Chicago, USA Posts: 2 Rep Power: 0	Sure! it will help people teetering on the edge and afraid to take a plunge, myself included!

March 24, 2021, 12:44		#4
Tibo99 Senior Member René Thibault Join Date: Dec 2019 Location: Canada Posts: 114 Rep Power: 6	I would be also interested since I'm trying to implement a new interpolation scheme myself and I'm totally lost. Your help would be appreciated! Best Regards,

March 24, 2021, 13:04		#5
Shibi Member Join Date: Feb 2020 Posts: 90 Rep Power: 6	10/10 approve! 10/10 would buy from udemy

March 27, 2021, 05:32		#7
wa$$im New Member Wassim Abdel Nour Join Date: Feb 2021 Location: France Posts: 16 Blog Entries: 1 Rep Power: 5	Great Idea ! Will be very useful to me. Thank you !

April 21, 2021, 08:14		#9
Tibo99 Senior Member René Thibault Join Date: Dec 2019 Location: Canada Posts: 114 Rep Power: 6	Thank you very much for the update. I'll certainly appreciate your work. Good success and stay safe. Best Regards,

April 22, 2021, 09:14		#10
warnerchang New Member warner chang Join Date: Aug 2020 Posts: 21 Rep Power: 5	of course！ looking forward to it!

May 19, 2021, 09:01		#12
Shibi Member Join Date: Feb 2020 Posts: 90 Rep Power: 6	Any update on this?

July 8, 2021, 12:19		#13
Tibo99 Senior Member René Thibault Join Date: Dec 2019 Location: Canada Posts: 114 Rep Power: 6	Is it still on working progress?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
OF div schemes greatly influence the result	Samuel Twain	OpenFOAM Running, Solving & CFD	4	August 2, 2021 10:38
[PyFoam] Using pyFoamPlotWatcher.py To Plot Residuals	m_ridzon	OpenFOAM Community Contributions	22	January 26, 2021 18:48
How can i make a parallel programming in OpenFOAM?	jignesh_thaker2007	OpenFOAM Running, Solving & CFD	3	July 2, 2014 09:37
QUICK based Schemes	bigorneault	Main CFD Forum	4	February 7, 2013 11:02
Better organization of Convective Term approximation schemes	Michail	CFD-Wiki	0	March 15, 2012 12:56