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-   -   Difference between B.C. in Gambit and Fluent (https://www.cfd-online.com/Forums/fluent/39204-difference-between-b-c-gambit-fluent.html)

Adrian January 12, 2006 01:33

Difference between B.C. in Gambit and Fluent
 
Dear all,

I'm new to Fluent and have just started practising it. I noticed in both Gambit and Fluent that there are options for me to enter the B.C.s, so do i need to enter the B.C.s in both? Or just enter the B.C.s in one of them? What if there're conflicts between the two?

Adrian

zxaar January 12, 2006 02:36

Re: Difference between B.C. in Gambit and Fluent
 
you specify the bounderies in gambit, these are saved when you export the mesh. When you read the mesh into fluent, fluent recognize these boundaries and you shall be able to apply the conditions to these boundaries in boundary condition panel.

Ralf Schmidt January 12, 2006 02:37

Re: Difference between B.C. in Gambit and Fluent
 
u can change most of the bc in fluent, but not all. If a face has a internal BC, it can just be changed into a few other (porous jump, radiator, wall).

Also, it is more convinient to set BC in gambit, because you can select the actual face in the geometry and give it a name (that name is the only thing u see in Fluent).

Ralf

MNNN January 12, 2006 04:50

Re: Difference between B.C. in Gambit and Fluent *NM*
 

Ahmed January 12, 2006 06:25

Re: Difference between B.C. in Gambit and Fluent
 
In Gambit you assign the regions of your mesh that would be treated as boundaries, In Fluent you set up these regions i.e. assign values of variables and parameters, Good Luck

Ralf Schmidt January 12, 2006 07:41

Re: Difference between B.C. in Gambit and Fluent
 
I thing, every surface (or volume) that is created in gambit will be treated as boundary condition in Fluent. If a surface in gambit is not defined, Fluent will produce a wall or something a like from it...

pradeep January 13, 2006 14:41

Re: Difference between B.C. in Gambit and Fluent
 
I guess the difference is that you assign the type of boundary in gambit and you assign boundary values in fluent


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