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Search: Posts Made By: cfd seeker
Forum: Fluent UDF and Scheme Programming September 14, 2012, 01:52
Replies: 20
Views: 5,955
Posted By cfd seeker
its not necessary to include <math.h> in UDF's. I...

its not necessary to include <math.h> in UDF's. I read it today. It is necessary to include math.h IN "C" but its not necessary in UDF. Something else is wrong with my UDF.....
Forum: Fluent UDF and Scheme Programming September 13, 2012, 21:47
Replies: 20
Views: 5,955
Posted By cfd seeker
Thanks fchan for your help. Have you seen my UDF?...

Thanks fchan for your help. Have you seen my UDF? is everything ok except this?
Forum: Fluent UDF and Scheme Programming September 13, 2012, 10:30
Replies: 20
Views: 5,955
Posted By cfd seeker
no i didn't....is it necessary?

no i didn't....is it necessary?
Forum: Fluent UDF and Scheme Programming September 13, 2012, 05:59
Replies: 20
Views: 5,955
Posted By cfd seeker
So instead of "abs(omega)" I am only using...

So instead of "abs(omega)" I am only using "omega"...is this thing causing problem or what else?
Forum: Fluent UDF and Scheme Programming September 13, 2012, 05:57
Replies: 20
Views: 5,955
Posted By cfd seeker
Sorry didn't get the point? please explain..... ...

Sorry didn't get the point? please explain.....

In the above commands I am not able to use "abs" with omega to get the absolute value of omega, every time I use the command "abs" fluent gives...
Forum: Fluent UDF and Scheme Programming September 12, 2012, 22:07
Replies: 20
Views: 5,955
Posted By cfd seeker
sorry Amir the mistake you pointed out was...

sorry Amir the mistake you pointed out was corrected in the original UDF but still its not working....I dont know what's happening in the changed version but the amplitude of the wing becomes so high...
Forum: Fluent UDF and Scheme Programming September 12, 2012, 10:50
Replies: 20
Views: 5,955
Posted By cfd seeker
nclude "udf.h" DEFINE_GRID_MOTION(s1020,...

nclude "udf.h"
DEFINE_GRID_MOTION(s1020, domain, dt, time, dtime)
{
Thread *tf = DT_THREAD (dt);
face_t f;
Node *v;
real NV_VEC(omega), NV_VEC(axis), NV_VEC(dp);
real NV_VEC(origin),...
Forum: Fluent UDF and Scheme Programming September 8, 2012, 10:11
Replies: 20
Views: 5,955
Posted By cfd seeker
Thanks Amir for your reply. I am just a beginner...

Thanks Amir for your reply. I am just a beginner in UDF's and some one helped me to modify the UDF in the current shape. So i don't know much about UDF's and C, can you kindly suggest me where I am...
Forum: Fluent UDF and Scheme Programming September 7, 2012, 11:52
Replies: 20
Views: 5,955
Posted By cfd seeker
I am attaching the txt file of the UDF in case...

I am attaching the txt file of the UDF in case any body wants to open it in C
Forum: Fluent UDF and Scheme Programming September 7, 2012, 11:49
Replies: 20
Views: 5,955
Posted By cfd seeker
Hi guys I am back with my UDF :) I want to...

Hi guys I am back with my UDF :) I want to simulate flapping motion of wing. The wing goes up from the mean position, comes back to the mean position and completes the half cycle in opposite...
Forum: Fluent UDF and Scheme Programming September 3, 2012, 14:20
Replies: 20
Views: 5,955
Posted By cfd seeker
Thanks Amir for your reply. I am currently doing...

Thanks Amir for your reply. I am currently doing CFD analysis of flapping wing for which I have a UDF but there are some problems in that and its not working properly. I will share my UDF here in a...
Forum: Fluent UDF and Scheme Programming August 28, 2012, 11:02
Replies: 20
Views: 5,955
Posted By cfd seeker
DEFINE_CG_MOTION vs DEFINE_GRID_MOTION

I am trying to simulate the flapping motion of simple wing using a UDF. I came across two types of UDF's for the said purpose. I would like to know the difference between the two types and which one...
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