On Tue, Apr 26, 2016 at 10:57 AM, Kris Kuhlman <kristopher.kuhl...@gmail.com> wrote: > Daniel, > > Thank you. I am a bit surprised that the CentralDifference basically matches > the hybrid method, and is more accurate than upwind.
Remember that central difference is second order accurate. The other schemes are first order. Of course it's unstable when the Peclet number is above 2 that's why we use the other schemes. Basically, the schemes (hybrid, exponential etc) are ways to swap between central difference and upwind based on the local Peclet number. -- Daniel Wheeler _______________________________________________ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
