Result Difference in Fluent and CFD Post

  • Last Post 21 February 2020
Ommm posted this 18 February 2020


I ran a CFD simulation to study the forces acting on the body and fins at 4AOA and some roll angle. where fins are named as f1, f2, f3, f4.
I found the difference in force values for f1 surface from fluent to cfd post. Can anyone explain why is it so??

Forces in y directions from fluent:

Force in CFD Post after exporting:

Also I exported the csv files sand summed the forces in y-direction to check it was coming to be -45.4809 for f1.


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rwoolhou posted this 18 February 2020

What does the vector (0 0 1) represent? 

Ommm posted this 18 February 2020

Sorry! I pasted the wrong screenshot. I have updated the image now.

kkanade posted this 19 February 2020

Please check reference values. These are important for post processing. 

Please go through help for reference values. 

Ommm posted this 20 February 2020

In the fluent I have stated the reference values that I needed. Do I have to mention this again in post? 

rwoolhou posted this 21 February 2020

What values are you expecting?