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Forum: FLUENT

August 24, 2011, 06:33

Replies: 10

Udf for moving circular edge

Views: 1,716

Posted By Amir

Why don't you separate your outlet and define 2...

Why don't you separate your outlet and define 2 macro for each(upper_outlet and lower_outlet)? in this case each x has only one y?

Forum: FLUENT

August 24, 2011, 03:12

Replies: 10

Udf for moving circular edge

Views: 1,716

Posted By Amir

Dear noa, It doesn't matter; I just wanted to...

Dear noa,
It doesn't matter; I just wanted to show the procedure; you can use both methods in this case as well. Here you have to know movement of the interface between 2 y. Suppose the interface...

Forum: FLUENT

August 23, 2011, 10:08

Replies: 10

Udf for moving circular edge

Views: 1,716

Posted By Amir

Ok, every x has 2 y (in circular arch one + and...

Ok, every x has 2 y (in circular arch one + and another -) right?
so you can use if clause (if y>0 then ... else ....)
Or, because the difference is just in a negative mark use such compatible mode.

Forum: FLUENT

August 23, 2011, 09:46

Replies: 10

Udf for moving circular edge

Views: 1,716

Posted By Amir

Hi, you can use a if-clause or a compatible...

Hi,
you can use a if-clause or a compatible statement like this:
real y;
y=NODE_Y(node_p)/abs(NODE_Y(node_p))*sqrt(fabs(pow(R,2)-pow((x-a1),2)))+(b1+CURRENT_TIME/T);

Bests,

Forum: FLUENT

August 21, 2011, 09:45

Replies: 10

Udf for moving circular edge

Views: 1,716

Posted By Amir

Hi noa, there are some inconsistencies in your...

Hi noa,
there are some inconsistencies in your code! maybe you mean:
real x, y[2];
y[0]=...;
y[1]=...;
NODE_Y (node_p) = y;// you have to assign it with a scalar not...

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