How to get UDM values in CFD Post

- February 10, 2021 at 11:34 am
  
  pkgupta108
  Subscriber
  
  Dear Users!nI wrote a UDF for postprocessing some results. I stored the results in User-Defined-Memory locations. All went well, and UDF compiled and gave results. I am able to see the results in FLUENT by selecting UDMI (in present case: total . Then I Export the entire solution file in CFD Post. nIn CFD Post also, whenever I access UDM values in Contour Plots etc., it is showing it nicely. However, when I wish to access the values stored in these 8 UDMs in Table viewere, it is showing ZERO values.nCan someone please help me out with this ?? Why the UDM values are not visible or accessible in Table viewer, though it is viewable in 3D viewer ??nKindly help me out.n
- February 10, 2021 at 5:09 pm
  
  Surya Deb
  Ansys Employee
  
  Hello, nIn table viewer, are you performing any area averaging or mass flow averaging of the UDMs at a certain location?nCan you change the location and check ?nRegards,nSuryan
- February 11, 2021 at 1:34 am
  
  pkgupta108
  Subscriber
  
  Thanks Surya! However, I am NOT performing any kind of averaging in Table Viewer.nWhat I have done is following. My geometry is a 90-degree pipe bend. In the region from 0-degree to 90-degree, I wish to plot graphs for variables on the pipe-periphery (circumferentialy) for which I defined planes at 30, 45, 60-degrees within the bend. Now with some programming in CDF-Post, I created 13 points on the circumference of each plane within the bend. Finally, I wish to get the values of the variables stored in UDM (through a UDF) at these 13 locations on the bend periphery (or circumference).nThe regular (default) variables as well as UDM are showing when plotted in Contours etc. However, the same UDM show ZERO values when viewed in Table Viewer. This is my problem. Would be very thankful if you can suggest a way out !nn
- February 11, 2021 at 5:19 pm
  
  Surya Deb
  Ansys Employee
  
  Can you view other variables (not UDMs) at these points in table viewer? nAlso can you test the UDM values by using Probe Function in Function Calculator and selecting one of those 13 points randomly.nDo you see a value or do you still see 0?.Regards,nSDn
- February 12, 2021 at 2:41 am
  
  pkgupta108
  Subscriber
  
  Dear Surya!nYou asked:Can you view other variables (not UDMs) at these points in table viewer?nMy Answer:YES, I can all view variables other than UDMs in the Table Viewer.nYou asked:Also can you test the UDM values by using Probe Function in Function Calculator and selecting one of those 13 points randomly.nMy answer: In fact, I am using PROBE function only to get the values in the Table viewer. And UDM is showing only 0 values...!!!nDo you see a value or do you still see 0? nYes, I still see 0 values for UDMsn
- February 12, 2021 at 7:28 am
  
  Amine Ben Hadj Ali
  Ansys Employee
  
  Which version are you using? Are you using CFD-Post Compatible DataFormatn?n
- February 13, 2021 at 12:40 am
  
  pkgupta108
  Subscriber
  
  I am using ver 19, and yes I am using CFD post compatible data. I also exported all the variables in fluent including udm to CFD post in format filename.cdat n