Procedure for modifying a solver: Beginner's Question

tzaht · June 9, 2017, 07:24

Hi,

I am trying to learn the framework of OpenFoam so that I can edit the equations that are being solved.

As a starting point for my learning, I am trying to edit the laplacianFoam solver to add a source term. If I succeed in adding a large source term, the basic/laplacianFoam/flange should blow up, proving I'm editing the correct file.

I have edited the file in:

applications/solvers/basic/laplacianFoam/laplacianFoam.C

However, this does not change the solution. Anybody able to shed some light or point me to a good guide on this?

Regards.

floquation · June 9, 2017, 07:34

Did you compile your changes?

Try this tutorial:
https://github.com/UnnamedMoose/Basi...mmingTutorials

Tobi · June 15, 2017, 12:41

Check out my screencasts for further I information. But I guess floquation gave the correct answer

Sent from my HTC One mini using CFD Online Forum mobile app

tzaht · June 15, 2017, 23:00

Thanks floquation and Tobias.

Yes, I simply wasn't compiling. :facepalm: I'm a bit embarrassed to waste your time on something so simple.

I appreciate your help, I am used to the MATLAB environment where you don't compile.

June 9, 2017, 07:24	Procedure for modifying a solver: Beginner's Question	#1
tzaht Member Tony Zahtila Join Date: Mar 2016 Posts: 33 Rep Power: 10	Hi, I am trying to learn the framework of OpenFoam so that I can edit the equations that are being solved. As a starting point for my learning, I am trying to edit the laplacianFoam solver to add a source term. If I succeed in adding a large source term, the basic/laplacianFoam/flange should blow up, proving I'm editing the correct file. I have edited the file in: applications/solvers/basic/laplacianFoam/laplacianFoam.C However, this does not change the solution. Anybody able to shed some light or point me to a good guide on this? Regards. Svetlana likes this.

June 9, 2017, 07:34		#2
floquation Senior Member Kevin van As Join Date: Sep 2014 Location: TU Delft, The Netherlands Posts: 252 Rep Power: 21	Did you compile your changes? Try this tutorial: https://github.com/UnnamedMoose/Basi...mmingTutorials Svetlana and random_ran like this.

June 15, 2017, 12:41		#3
Tobi Super Moderator Tobias Holzmann Join Date: Oct 2010 Location: Bad Wörishofen Posts: 2,711 Blog Entries: 6 Rep Power: 52	Check out my screencasts for further I information. But I guess floquation gave the correct answer Sent from my HTC One mini using CFD Online Forum mobile app __________________ Keep foaming, Tobias Holzmann

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Working directory via command line	Luiz	CFX	4	March 6, 2011 21:02
Question abt. the Riemann analytic solver	jinwon	Main CFD Forum	0	July 16, 2007 15:11
A beginners question	Pst	Main CFD Forum	2	February 19, 2006 04:33
Poisson Solver question	Suresh	Main CFD Forum	3	August 12, 2005 05:37
A Question on the Dynamic procedure in LES	dragon	Main CFD Forum	1	April 28, 2005 16:11

June 15, 2017, 23:00		#4
tzaht Member Tony Zahtila Join Date: Mar 2016 Posts: 33 Rep Power: 10	Thanks floquation and Tobias. Yes, I simply wasn't compiling. :facepalm: I'm a bit embarrassed to waste your time on something so simple. I appreciate your help, I am used to the MATLAB environment where you don't compile.