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-   -   How I can setup Fluent for a Define_Profile on FZ? (http://www.cfd-online.com/Forums/fluent/50082-how-i-can-setup-fluent-define_profile-fz.html)

Nuno December 18, 2008 11:27

How I can setup Fluent for a Define_Profile on FZ?
 
I have a UDF code wich have a Define_Profile on a Fluid Zone.

For a Velocity Inlet is easy setup Define_profile because it have a appropriate label for input profiles.

But when we define a profile in a Fluid Zone we have only a Fixed Values, Source Terms, Laminar Zone and Porous Zone. So, to setup correctely the boundary conditions we need go to Boundary Painel and the ID label is a INDEX number for Define_Profile(name,thread,INDEX).

My question is, how i can tell Fluent the Fluid Zone have a specific profile? In other words, how can setup Define_Profile for a Fluid Zone?

zongtwi December 18, 2008 13:04

Re: How I can setup Fluent for a Define_Profile on
 
The flow in the fluid zone will be calculated by the solver, so the only reason you may want to specify a profile for the fluid zone is for initilization purposes. Is that correct? If this is correct, you may want to use Define_init.

Otherwise, I don't see why you need to specify a profile inside a fluid zone.

Hope that helps.

Nuno December 19, 2008 11:12

Re: How I can setup Fluent for a Define_Profile on
 
My question is: When we setup Fixed Values on Fluid Zone Painel, avlues of variables are constants in each iteration or in all computation until computation converge?

zongtwi December 22, 2008 00:05

Re: How I can setup Fluent for a Define_Profile on
 
Looking at the FLUENT user's documentation, you can in fact use the Define_Profile for fixing the values inside your fluid zone.

In the UDF documentation it provides an example of using the Define_Profile for fixing the values in your fluid zone. it is example 3 in section 2.3.13 of the UDF documentation.

The fixed valued variables will have a fixed value for every iteration until convergence have been achieved.

Hope that helps.

kdmais December 22, 2008 13:18

Re: How I can setup Fluent for a Define_Profile on
 
zongtwi I had be see the manual. My doubt is if i have a varaiable wich are defined on defined_adjust (at every iteration and is called at the beginning of every iteration), and I need that variable is constant in each iteration on define profile.

Yannian February 23, 2012 04:39

Hi Nuno,
Have you define profile on fluid zone? If you suceed, Do you mind telling me your method?


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