How to make data file for matlab from CFX?
 

Everyone: I want to draw 3d picture by matlab. But the data file (containing the velocity and pressure of a certain plane)I got from the result of CFX5 by "export" command is not fit to matlab.The data is not in order.For example, if x=0,y should be 0,2,4,6,8,10,12, x=2, y should be 0,2,3,4,6,8,10,12.But the data file is not in such way.For example, when x=0 y=0,2,4,6,8,10,12; when x=2,y=2,6,12(some positions have no data be exported).So I cannot draw satisfied picture from such data file by matlab. I think it is because the mesh of CFX5 is unstructured grid.How to resolve it? I have fieldview, it can export data of a certain plane by "export" command.But the file made by fieldview has the same problem. How to resolve this problem? Thank you!

Re: How to make data file for matlab from CFX?
 

Probably you can use keyword GRID CENTRES in
:>PRINT OPTIONS
:>WHAT

... ?

Re: How to make data file for matlab from CFX?
 

Read your data into a spreadsheet application and reorder it.

Robin

Re: How to make data file for matlab from CFX?
 

What I do is to first "re-map" the data from CFX 5 onto a structured mesh. I use the MATLAB comands delaunay, tsearch and dsearch to interpolate the raw data onto my custom defined structured grid. Then go wild with the data analysis....

René

Re: How to make data file for matlab from CFX?
 

firstly check your output data. try command griddata in matlab.