acc

nikesh · March 6, 2013, 23:22

Hi all,

It sometimes gets me confused whether I'm at the right place for my questions. However, here it goes....

I need to access the source code of SIMPLE algorithm in OpenFOAM. Where do I look?
Secondly, after going into the source code, I'll need to understand one of the functions used there. For eg, there's a piece of code that reads as::

eqnResidual = solve ( UEqn() == -fvc::grad(p) ).initialResidual();

Now, I need to find out how initialResidual is determined/calculated inopenFOAM (simpleFoam),how and where do I look for it ??

Is there any command that I can use in the terminal that'll direct me where that particular function is located?

Any heads up highly appreciated.

Thnx!!
nikesh

Bernhard · March 7, 2013, 02:33

You could either use the Doxygen files: http://www.openfoam.org/docs/cpp/ this brings you to: http://foam.sourceforge.net/docs/cpp...ce.html#l00173

Or you could use grep and find from the src directory
grep initialResidual $(find -name \*.C -or -name \*.H)

March 6, 2013, 23:22	acc	#1
nikesh Member Nikesh Bhattarai Join Date: Nov 2011 Location: Sacheon, South Korea Posts: 82 Rep Power: 13	Hi all, It sometimes gets me confused whether I'm at the right place for my questions. However, here it goes.... I need to access the source code of SIMPLE algorithm in OpenFOAM. Where do I look? Secondly, after going into the source code, I'll need to understand one of the functions used there. For eg, there's a piece of code that reads as:: eqnResidual = solve ( UEqn() == -fvc::grad(p) ).initialResidual(); Now, I need to find out how initialResidual is determined/calculated inopenFOAM (simpleFoam),how and where do I look for it ?? Is there any command that I can use in the terminal that'll direct me where that particular function is located? Any heads up highly appreciated. Thnx!! nikesh

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March 7, 2013, 02:33		#2
Bernhard Senior Member Bernhard Join Date: Sep 2009 Location: Delft Posts: 790 Rep Power: 21	You could either use the Doxygen files: http://www.openfoam.org/docs/cpp/ this brings you to: http://foam.sourceforge.net/docs/cpp...ce.html#l00173 Or you could use grep and find from the src directory grep initialResidual $(find -name \.C -or -name \.H)