[cik mimi]

Good day,

In my udf code, under DEFINE_INIT(my_initilize,d),

can I declare C_UDMI(c,t,i) = 1.0 as liquid thread , without using

FLUID_THREAD_P(t) macro?

Thank you so much.

[Bruno Machado]

Originally Posted by cik mimi

Good day,

In my udf code, under DEFINE_INIT(my_initilize,d),

can I declare C_UDMI(c,t,i) = 1.0 as liquid thread , without using

FLUID_THREAD_P(t) macro?

Thank you so much.

I am not sure about what you need. Can you explain what is your problem so we will have a better chance to help you.

[cik mimi]

Hi Bruno Machado,
I am appreciate for your quick response.

Actually, in my case, I need to compile the code since I have this miscellaneous macro i.e. FLUID_THREAD_P(t).

However, my computer has problem to compile the code and certainly the code cannot be simply interpret. Therefore, I have decided to get rid of this term FLUID_THREAD_P(t) and just simply make looping on UDMI(c,t,i) equal to 1.0 (to declare it is a liquid region).

This is part of my code:

DEFINE_INIT(initialize,d)
{ cell_t c;
Thread *t;
int i;

thread_loop_c(t,d) /* Loop over all cell threads in domain */
{
if (FLUID_THREAD_P(t))
{
begin_c_loop(c,t) /* Loop over all cells in a cell thread*/
{
C_UDMI(c,t,4) = 1.0; /* Liquid region */
C_UDMI(c,t,0) = Latent_Heat;
C_UDMI(c,t,1) = Latent_Heat;
C_UDMI(c,t,2) = 1.0;
C_UDMI(c,t,3) = 1.0;
}
end_c_loop(c,t)
}
}
}

Is it possible to just put the number 1.0 to indicate it is liquid?

Thank you so much.

[Bruno Machado]

Originally Posted by cik mimi

Hi Bruno Machado,
I am appreciate for your quick response.

Actually, in my case, I need to compile the code since I have this miscellaneous macro i.e. FLUID_THREAD_P(t).

However, my computer has problem to compile the code and certainly the code cannot be simply interpret. Therefore, I have decided to get rid of this term FLUID_THREAD_P(t) and just simply make looping on UDMI(c,t,i) equal to 1.0 (to declare it is a liquid region).

This is part of my code:

DEFINE_INIT(initialize,d)
{ cell_t c;
Thread *t;
int i;

thread_loop_c(t,d) /* Loop over all cell threads in domain */
{
if (FLUID_THREAD_P(t))
{
begin_c_loop(c,t) /* Loop over all cells in a cell thread*/
{
C_UDMI(c,t,4) = 1.0; /* Liquid region */
C_UDMI(c,t,0) = Latent_Heat;
C_UDMI(c,t,1) = Latent_Heat;
C_UDMI(c,t,2) = 1.0;
C_UDMI(c,t,3) = 1.0;
}
end_c_loop(c,t)
}
}
}

Is it possible to just put the number 1.0 to indicate it is liquid?

Thank you so much.

Basically by defining C_UDMI(c,t,4) = 1.0; you are defining that the value stored in the UDMI 4 is equal to 1.0. Nothing else.

I am just wondering if you need to use the FLUID_THREAD_P(t). In the cell zone conditions in Fluent, you can define if you have a fluid or a solid zone. In case you are working with both (fluid+particles) the FLUID_THREAD_P(t) becomes interesting, otherwise, you can simply use the thread returned by the Fluent.

[cik mimi]

Dear Bruno Machado,

Thank you for your explanation.

Somehow my compilation code has showed error message (not compatible with 64 bits environment).

I wonder if you can give an opinion on how to get correct steps to compile the codes with the miscellaneous macro, FLUID_THREAD_P(t)?

Thank you =)

[pakk]

Is it possible to just put the number 1.0 to indicate it is liquid?

I don't know what you mean by "indicate it is liquid". If you make UDM4 equal to 1.0, Fluent does not magically understand that you mean it is a liquid element.

I would advise you to fix the problem you have with "FLUID_THREAD_P(t)", and don't invent your own method that will have many more problems. Which compilation errors do you get?

[Bruno Machado]

Originally Posted by cik mimi

Dear Bruno Machado,

Thank you for your explanation.

Somehow my compilation code has showed error message (not compatible with 64 bits environment).

I wonder if you can give an opinion on how to get correct steps to compile the codes with the miscellaneous macro, FLUID_THREAD_P(t)?

Thank you =)

For this, I can not help much. But make sure you open your Fluent using the command prompt from the Visual Studio. Also, have a look in the post `e` posted in the other topic. I am pretty sure you can find the answer in the topic he referred to you.

[cik mimi]

Hi Pakk.
Thank you for your response. Appreciate it.

My compilation error gives me: does not compatible with 64 bits environment.

Previously, when I interpret the code, it does showed >> structure references is not implemented on line 41: FLUID_THREAD_P(t).

Earlier, I assume that number 1.0 is stored in Fluent library as liquid thread. However, I am wrong with that. Sorry with that.

[pakk]

Originally Posted by cik mimi

Hi Pakk.
Thank you for your response. Appreciate it.

My compilation error gives me: does not compatible with 64 bits environment.

Previously, when I interpret the code, it does showed >> structure references is not implemented on line 41: FLUID_THREAD_P(t).

Earlier, I assume that number 1.0 is stored in Fluent library as liquid thread. However, I am wrong with that. Sorry with that.

That is not the compilation error. Please show the text that pops up in the text user interface, copied literally.

[cik mimi]

Hi pakk,

This is the result of my compilation..

Error: The UDF library you are trying to load (libudf) is not compiled for 2d on the curent platform (win64)

Thank you.

[pakk]

That is not the error you get when you compile, but the error you get when you load.

Please show the error that you get when you compilee (click 'build').

[cik mimi]

Originally Posted by pakk

That is not the error you get when you compile, but the error you get when you load.

Please show the error that you get when you compilee (click 'build').

Hi pakk,

when I tried to open it gave me this error:

The UDF library you are trying to load (libudf) is not compiled for 2d on the current platform (win64).
The system cannot find the path specified.

How to fix this issue?

Thank you so much

[pakk]

As I said before: that is not the error you get when you compile, but the error you get when you load.

Read it carefully: "The UDF library you are trying to load (libudf) is not compiled".
It is the error that you will get when you try to load a UDF that is not compiled. Why is the UDF not compiled? I don't know, and it is impossible to see from this error. You will have to show the error that you get when you try to compile.

So please show the error that you get when you compile (what is shown after you click 'build').

[cik mimi]

Hi pakk,

May I ask, why this error occur during load?

This is the one I face. Not an error during compile.
So, my code cannot be compile to 'done'.

Thank you.

[pakk]

I don't know.

And until you share the text shown on your screen when you click 'build', I can not help you further. You say that there is no error there, but you might not read it correctly. (And given that you already misread my question here three times, it is not impossible that you just overlooked the error.)

[cik mimi]

Good day,

This is my error message shown in this window

The UDF library you are trying to load (libudf) is not compiled for 2ddp on the current platform (win64).
The system cannot find the file specified.

C:\Users\sfahmi\Desktop\proposal defence\sas(1e-6)\solidification\libudf\win64\2ddp\libudf.dll

[pakk]

Please don't repeat the text that is shown when you click 'load'. That is not important.

When you are ready to share the text that is shown when you click 'build', let me know.

[cik mimi]

Dear sir,

please help me................ because my UDF code is in 32 bits

[cik mimi]

And , I don't have a good compiler to match with a new fluent version

[pakk]

I really want to help you. But I can not see what is shown on your screen...

What you should do:
1. Open Fluent.
2. Load your model.
3. Go to the user-defined-functions, compilation option.
4. Select your source file.
5. Click 'build'.
6. Select the text shown in the text user interface.
7. Press control and C.
8. Go to this screen, and click 'reply'.
9. Press control and V.
10. Click 'Submit reply'.

If you don't do this, I can not help you.