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-   -   Interpolation of the results....HOW??? (http://www.cfd-online.com/Forums/fluent/96221-interpolation-results-how.html)

mohammad January 16, 2012 14:54

Interpolation of the results....HOW???
 
Hello everybody,
I have a question about interpolation of the results for same models [with different node arrangements and same Geometries.]
As i know this is possible in CFX that we initially solve the model with fewer nodes for a while, then use the results as the initial values and run the same geometry with just higher number of nodes.
Is this method possible in FLUENT? and how should i import the initial value file.

regards,

Amir January 16, 2012 16:14

Hi,

file->interpolate (refer to manual)

Bests,

shk12345 January 17, 2012 10:19

hi amir
tell me something more about the interpolate .

shk

mohammad January 23, 2012 07:47

Hi everybody, hi Amir

I did it as the help manual...but the results are awkward...about 500 times bigger than what i expected.

1) I made a model with small number of nodes----> I solved it---> results look to be in-range.---> i saved an "Interpolate" file

2) I generated the same model with higher number of nodes---->I imported the "interpolate" file from step 1---> i ran the model

https://www.sharcnet.ca/Software/Flu...ug/node137.htm

as i told , the results are really bad....

what could be the cause?

Regards,

Amir January 23, 2012 09:12

Hi,

Did you save all of the fields in interpolate file? velocity, pressure, ....
Did you save the interpolate file of the converged solution?
when you import the interpolate file in a finer grid, check all the fields and BCs before iteration. At last, maybe your solution hasn't converged yet.

Bests,

mohammad January 23, 2012 14:28

Hi dear Amir,

All are ok...but i think the last one is the cause.
Anyway...thank you for your help man.

Regards


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