Error in Interpolation Function

Please login with a confirmed email address before reporting spam

Hello All,

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


Reply

Please read the discussion forum rules before posting.

Please log in to post a reply.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.