Error in Interpolation Function
Posted 24 Sep 2021, 13:10 GMT-4 Fluid, Heat Transfer & Phase Change 0 Replies
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I am currently using an interpolation function, defined using a .txt file, as an time-dependent inlet temperature profile for the 'Heat Transfer in Pipes' interface.
The model successfully calls the function, however, there is a small error in what is called by the input function and what can be measured in the Results section, using a Point Evaluation at the inlet. The error is typically small, fluctuating around plus/minus 0.03 C, except at the beginning and end of the time range where it can reach values of close to plus/minus 0.2 C.
If anyone knows what may be causing this discrepancy, or how to minimize it, that would be greatly appreciated.
Thank you! Andrew