Temperature profile of a cylindrical wall in CFX
 

Dear friends,
In fact I want to use a special temperature profile at a cylindrical wall in CFX (as shown in attached file). Can any body help me please to do that ? in there any tutorial or document ?

Sincerely

Hi
It is easy to define the temperature variation vs a distance by using a function in CFX-Pre.

Temperature Profile
 

Dear Abou Ali,
Thank you very much, but my problem is that the wall is rounded and not straight, have you any document to send me please ?

Hi,
If you need documentation about CFX-Pre Function you can find it in the CFX Help. You can see also tutorial 19 Air Conditioning Simulation (CFX 13).

CFX Tutorial
 

There are some exampls in the cfX tutorial about functions. you can use them.

Dear Abou Ali
In fact I read the mentioned tutorial, but in that example show using the functions in CFX but has not explain how can write a function. Do you know how can I write a function to show for example a linear temperature profile ?

Sincerely

Hi,
This is the procedure to create and use a function in CFX Pre.
The function is T=f(x) and the known data are:
T1 at x1
T2 at x2
T3 at x3
The units of T and x are K and m respectively

Procedure
1- From the main menu, select Insert > Expressions, Functions and Variables >
User Function.
2- In the New Function dialog box, type Tempx.
3- Click OK.
The details view for the Tempx function is displayed.
4- In the Argument Units box type [m]
5- In the Result Units box type [K]
6- Set Option to One Dimensional
7- In the Coordinate box type x1
8- In the Value box type T1
9- Click Add
10- Repeat steps 7 to 9 to add x2,T2 and x3,T3.
11-Click OK
*****************
From the main menu, select Insert > Expressions, Functions and Variables >
Expression.
2. In the New Expression dialog box, type Tx.
3. Click OK.
The details view for the Tupper equation is displayed.
4. Under Definition, type Tempx(x) .
5. Click Apply to create the expression.
The expression is added to the list of existing expressions.