I think it its not a problem of properties as the same values are used in COMSOL and they result different values. Moreover, I tried small changes like 5-10% and there was no big difference... could it be FiPy's Solver? Thank you very much for spending so much time on this!
On Wed, Jan 23, 2013 at 11:10 PM, Jonathan Guyer <[email protected]> wrote: > > On Jan 22, 2013, at 9:56 AM, John Assael wrote: > > > Well I finally did it with some extra points defining the cell size... > > However I keep getting a marked difference from Comsol results > > The charts are here... http://www.ic3man.gr/Tol8_6c.xls > > Is it possible that the calculations are not done right? (although I > have specified quite small cell sizes) > > Or are the units correctly specified? (I want to run the simulation for > 1sec and the time step should be 0.002s) > > I don't see anything obviously wrong in your script. I do find your > problem is strongly sensitive to the thermal diffusivity in the fluid, so > small changes in any of tc0, den0, or cp0 can change the temperature the > wire achieves at any timestep. Beyond that, I don't know. > > > _______________________________________________ > fipy mailing list > [email protected] > http://www.ctcms.nist.gov/fipy > [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ] > -- ..:: ic3man.gr ::.. software | design | development _/_/_/ email: [email protected] _/_/_/ www : http://www.ic3man.gr ------------------------------------------------------------------ This e-mail and any attachments are confidential. You may not copy or disseminate any information contained in them to anyone other than the intended recipient. If you are not the intended recipient please contact the sender by reply e-mail and destroy all copies of the original message immediately. ------------------------------------------------------------------
_______________________________________________ fipy mailing list [email protected] http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
