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-   -   How to modify the model? (http://www.cfd-online.com/Forums/cfx/18735-how-modify-model.html)

cfxbeginer November 21, 2001 13:00

How to modify the model?
 
How can I modify the model of CFX.Only by complify a Fortran file?Is there another way?

arjun s y November 27, 2001 06:43

Re: How to modify the model?
 
can you please dilate it?

cfxbeginer November 28, 2001 13:20

Re: How to modify the model?
 
For example, I want to add a item to the momentum conservation equation.

arjun s y November 30, 2001 00:31

Re: How to modify the model?
 
ohh ..let me check ..if i could do it i will let you know ..

arjun

arjun s y November 30, 2001 23:20

Re: How to modify the model?
 
i gave it a thought .. i din't try it due to some probs but the philosophy should be like this .. take the model eqauation ..it would be of the form

d(ro*u)/dt + A * d(ro*u*u)/dxi + B * d(J)/dxi = S1 + S2

now here in this A and B are some constants (see the model carefully) and S1 and S2 are source terms ... now to set the model ..what you should do is set A , B to zero (if you need) and set S1 = some expression what you need ..say for example .. A = 0, B=0 S2 = 0 and S2 = C * exp(kT) seth the model

d(ro*u)/dt = C*exp(kT)

done ...so read manual and you may use fortran to set this .. please reply ..

arjun


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