CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CFX (http://www.cfd-online.com/Forums/cfx/)
-   -   3 Dimensional User Function (http://www.cfd-online.com/Forums/cfx/97952-3-dimensional-user-function.html)

ashtonJ February 29, 2012 02:13

3 Dimensional User Function
 
Dear All,

I am trying to import 3 dimensional data into user function in CFX-Pre.

my data is like below:
X,Y,Z,Velocity
1,2,4,0.2
.....

I got the following error after importing data.

ERROR
Incorrect number of arguments specified in CEL FUNCTION 'Function 1'.
Expected number: 3; actual: 1.

Please let me know where the problem is from.

Thank you.
Kind regards,
AshtonJ

Lance February 29, 2012 03:16

Make sure the header in the file is in a format similar to this:

Code:

[Name]
myname
[Spatial Fields]
x,y,z
[Data]
x [ m ], y [ m ], z [ m ], Velocity [ m/s ]


ashtonJ February 29, 2012 03:49

Thank you.

I arranged the data in following format.

[Name]
VelocityMag
[Spatial Fields]
x,y,z
[Data]
1,2,2,0.2

Then, I tried to import the data into User function with three dimensional option. It gave the following error:

3 Data item() could not be read as a number.

Please help me to fix this.

Thank you.
Kind regards,
ashkan

Lance February 29, 2012 03:53

You misunderstood, make sure the header is in the format I suggested. Then your file would look something like:
Code:

[Name]
myname
[Spatial Fields]
x,y,z
[Data]
x [ m ], y [ m ], z [ m ], Velocity [ m/s ]
1,11,12,20
12,11,12,20
.....


meram May 14, 2014 03:50

3 Dimensional User Function
 
Sorry for bumping a 3 years old thread, I arranged a 3d data in following format(as Mr. lance suggested):

[Name]
myname
[Spatial Fields]
x,y,z
[Data]
x [ m ], y [ m ], z [ m ], Velocity [ m/s ]
1,11,12,20
12,11,12,20
15,13,14,18

but it gave the following error:

"1 Data item() could not be read as a number."

then I decided to define it without importing data as shown in the attached image,

but then it gave the following error:


"ERROR
Incorrect number of arguments specified in CEL FUNCTION 'Function 1'.
Expected number: 3; actual: 1."


Please help me to fix this.:confused:

image address:

http://www.tinypic.com/view.php?pic=sxnq6r&s=8#.U3MeOFfG21t

ghorrocks May 14, 2014 06:36

Before you accuse CFX of having a bug - have you done the basic checks?

Have you checked your carriage returns are correct (Linux versus Windows)?
Have you confirmed that there is a carriage return after the last line?
Have you tried it with another data set?

meram May 14, 2014 12:26

Hi Mr. Horrocks,
Thanks for your attention; I really appreciate your help.

just now i have solved my problem,:o
there were two mistakes in my previous work:
1- Imported text file should not have any header.
2- I should define units for every argument (m, m, m) in "Argument units field"


best regards,


Mehdi


All times are GMT -4. The time now is 02:28.