Hello, I have still problems with interpreting my UDF. It looks like this: #include "udf.h"

DEFINE_PROFILE(inlet_x_velocity,thread,index) {

real x[ND_ND];

real y;

face_t f;

begin_f_loop(f,thread)

{

F_CENTROID(x,f,thread);

y=x[1];

F_PROFILE(f,thread,index)=.5*(1-exp(-69.10887533*(y-.294642426)));

}

end_f_loop(f,thread) }

Fluent always reports the message: line 1: parse error

Do U have any idea?

Thanks in advance , Honza

Try to replace "thread" with "t" everywhere in your code. Maybe also "index" with "i". Just an idea - see if it helps.

many thanks, but there is still the same problem, still reporting line 1: parse error. Any other idea? Please

I really have no idea.

But why don't you try to narrow down the error. Get rid of some of the code and see if you can isolate the error. Maybe it is something in your expression with the exponential. Try to make "= 1"; .

But I don't understand the "line 1" in the error. Everything looks all right.

good idea, but I have already tried it. I am exhausted of it

I don't think that this is the issue, but where have you included math.h so that you can use the exp function? Is it included in one of the files that is included in udf.h (I didn't see it there)?

Matt

Hi Bohis,

Your udf is correct. There is no errors. Please check the following things.

1.While intrepreting the udf, the file path to hook the udf should not have any space between them. ex. c:\documents and settings\..... It is wrong. c:\project_name\check.c It is correct procedure 2. File name also should not contain the space.

Hope it will help you

with warm regards, JSM

#include.udf

u must write it as header

regards

Hi everybody, especially JSM,

It´s really working! Well, never spaces !! I have one special question? What is your nationality? I am interested in people nationalities which are visiting this pages.

many thanks

Hi Bohis,

Knowledge will come by experience and self interest to learn. Nothing special. This is the really good website from this we can share our knowledge. What is the reason to ask the nationality? My nationality is India.

with warm regards, JSM

I think so. I am just interested in who you are, who help me I am from Czech Republic. Do you ever know It?