why are the input velocities in profile changed in the fluent after iteration?
 

Hello all,
I am trying to simulate a velocity profile obtained from FORTRAN in a fluent but after iterations the original profile values are changed.So why is this happening?
The original velocity profile is ;
(Vel
1.12
-6.188
0
4.027
0
-2.874
0.12
2.271
-0.64
0
)
I have imported this profile in FLUENT6.3 and after iterations the velocity profile at the inlet boundary of the tank was checked but there are variations with the original values.The deviated profile from fluent is;

1.064
-5.8786001
0
3.82565
0
-2.7302999
0.11399989
2.15745
-0.60799962
0
I think it should be same like the original for the same inlet boundary.So why is this deviated from original profile?? Or is there any other things that i did not do in fluent?

Dhurba