[adambarfi]

hi Nima,

I'm pretty a new user of OF in compare with you,
can you explain me how can I define the position vector?

where should I define it? I'm using the buoyantBoussinesqSimpleFoam. should I remove the g file in constant directory?
can you attach me an example?
actually I know what to do but I cannot Implement it in OpenFOAM!!!!!!!
please help me, I'm so confused.

thank you

[nimasam]

hi newbie
do you know how to implement a code at OpenFOAM at all?
1) first read user guide chapter 3 if i was true , it tells you how to compile a code
2) read programmer guide, it has 2,3 example how to implement a code
3) you can find some tutorials about how to add a source term to a solver or how to add energy equation into a solver in Internet. it gives you enough information how to start
4)the last but not the least , if you live in Iran/Tehran you can attend at ISME OpenFOAM workshop, hold by myself, i teach these things there

[adambarfi]

Originally Posted by nimasam

hi newbie
do you know how to implement a code at OpenFOAM at all?
1) first read user guide chapter 3 if i was true , it tells you how to compile a code
2) read programmer guide, it has 2,3 example how to implement a code
3) you can find some tutorials about how to add a source term to a solver or how to add energy equation into a solver in Internet. it gives you enough information how to start
4)the last but not the least , if you live in Iran/Tehran you can attend at ISME OpenFOAM workshop, hold by myself, i teach these things there

Dear Nima,

Thank you for your reply. again I rummage the user guide and programmer's guide, but I catch anything. there wasn't any example or hint for defining a position vector.
till now I just change the geometry of OF examples and I've applied only small change in codes. I didn't implement a code myself, I just changed them.
unfortunately, I don't live in Tehran, I'm a bachelor student of Shahrood university of technology and now I'm at Torbat-e Heydariyeh.

can you help me that how and where can I define a position vector? if I define it, it is possible to change the g.
of course, I'm trying to define this vector by chance!!!! I hope I can do it

Thank you

[nimasam]

i suppose you know how to change a code
you need define a volVectorField g (do you know, how?, look at code and see how velocity is implemented)
then you need to access position vector:
poistion vector can be accessed by: U.mesh.C()
and you need to read the center position vector from dictionary (see how gravity vector is implemented)
i know, you know the rest, you should implement the function i mentioned in previous post.

Thats it!

[adambarfi]

Originally Posted by nimasam

i suppose you know how to change a code
you need define a volVectorField g (do you know, how?, look at code and see how velocity is implemented)
then you need to access position vector:
poistion vector can be accessed by: U.mesh.C()
and you need to read the center position vector from dictionary (see how gravity vector is implemented)
i know, you know the rest, you should implement the function i mentioned in previous post.

Thats it!

thank you dear Nima,
I'm trying and some advances were made!!!!
I promise if I couldn't solve this problem, again I will be back