Home Forums Numerical Uncertainty Tools Uncertainty estimation formula used with the 2017 version of the tool Reply To: Uncertainty estimation formula used with the 2017 version of the tool

Carlo Negrato
Participant
Post count: 6

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NCells Var1 # This line contains variable names
0 10 # This line contains the number of results to use for the fit
0 32.55 # Optional line with experimental results
1568000 36.7
2244000 36.4
2945250 35.71
3528000 36.3
3920000 31.7
5610000 35.7
6174000 36.3
6272000 34.8
8820000 34.78
15680000 32.5
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[Numerical_uncertainty]
CaseName = carloTest
DatafileName = var1_gridref.dat
OutputFormat = PNG ; PS/TEX/PNG/WIN/TEC
IsUnsteady = No
GridStepsizeMethod = 3
TimeStepsizeMethod = -1
UncertaintySolution = 0
Showp = Yes
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Pierre: for completeness:
– the ‘UncertaintySolution = 0’ is the only value accepted for the data in ascending order
– actually, if I put another grid at last, I do have the error bar for a different grid as you said. BUT the fit is different which, to my understanding of the method, is not the expected behavior.
Very possible that I am missing something here…. Thanks for getting back ,
Carlo