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Forum: FLUENT

April 1, 2011, 11:59

Replies: 7

Impulse input -Residence time distribution

Views: 3,052

Posted By Amir

first of all in this approach, you have to...

first of all in this approach, you have to disable inlet diffusion in setting UDSs.
for evaluating residence time, I have another suggestion:
in transient flow iteration, you can monitor (and/or...

Forum: FLUENT

April 1, 2011, 08:51

Replies: 7

Impulse input -Residence time distribution

Views: 3,052

Posted By Amir

I proposed you to make some changes in UDF for...

I proposed you to make some changes in UDF for impulse input as follow:

#include "udf.h"
DEFINE_PROFILE(boundary_profile,t,i)
{
real x[ND_ND];
real y;
face_t f;
real time=CURRENT_TIME;...

Forum: FLUENT

February 25, 2011, 11:43

Replies: 7

Impulse input -Residence time distribution

Views: 3,052

Posted By Amir

your case is unsteady and DEFINE_PROFILE macro is...

your case is unsteady and DEFINE_PROFILE macro is evaluated at every time step. you can retrieve the time by CURRENT_TIME command so you can implement such algorithm:
if (CURRENT_TIME<...)...

Forum: FLUENT

February 25, 2011, 09:30

Replies: 7

Impulse input -Residence time distribution

Views: 3,052

Posted By Amir

Hi, you can do that with a simple UDF by...

Hi,
you can do that with a simple UDF by DEFINE_PROFILE macro.

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