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GUI - Momentum source - Math. expression editor

Posted: Sat Jan 10, 2015 4:49 pm
by Phjod
Hello.
Could somebody provide me with an example of usage of mathematical expression editor to fill in momentum sources (Su, dSudu, etc.)? It seems I don't understand correctly the methode and receive sustematic error in running the solver. Sorry for this first silly question...
Thanks in advance, regards, PhJ.

Re: GUI - Momentum source - Math. expression editor

Posted: Mon Jan 12, 2015 10:40 am
by Erwan Le Coupanec
Hello,

The momentum source terms you can fill in the GUI are then used as follows:



where
: volumic production of momentum - explicit part ()
: volumic production of momentum - implicit part ().

As a first attempt, you can put the whole source term in the explicit part .

Regards,
Erwan.

Re: GUI - Momentum source - Math. expression editor

Posted: Sat Jan 17, 2015 7:29 pm
by Phjod
Hello.
I appreciate your help.
I understand theory and concept, but all what I try to implement in the GUI - math editor - even simplest things as constant everywhere on al 6 parameters, results in solver failure with SIGSEGV... That is the reason why I ask for an example, trying therefore to locate my mistake by doing this. Initialisation is no problem, just moment source definition
Best regards,
Ph.

Re: GUI - Momentum source - Math. expression editor

Posted: Sun Jan 18, 2015 7:35 pm
by Yvan Fournier
Hello,

Could you post files as per the forum recommendations to let us understand what type of error you obtain ?

Regards,

Yvan