The RTM solver enables you to define monitoring points in the flow domain. The solution at these monitoring points is extracted after every time step. This solution is printed in the file with the extension .exp.
Syntax
BEGIN PROBLEMDATA 
     ExtractPoint Probe1 { xyz = x  y  z } 
END 
Comments
The *.exp file contains the solution variables  pressure, resin saturation, velocity (u, v, w) and temperature at the extract points. 
  
Example
BEGIN PROBLEMDATA 
     ExtractPoint myprobe  xyz = 0.5  0.5  7.5 } 
END