| Buddy,
I think the Numerical section of the version 1.0 manual (Chapter3, page 19) does a reasonable job of explaining this. On May 26, 2006, at 5:30 AM, Damm, Edward F. (E. Buddy) wrote: In the below equation, I don't understand well how FiPy solves convection when the convCoeff is a function of concentration. I believe that one needs to factor out one concentration term from a convCoeff when it is a function of concentration. Is my understanding here even correct? If it is, I'd like to understand this better. I can't seem to find anything in the manual or reference guide that explains that FiPy includes the concentration in the below equation, and it needs to therefore be factored out in some cases. If this is something that is known to one skilled in the art, please say so (or point me to a reference that might explain it). If it is a unique feature of how FiPy solves things, could you perhaps elaborate further in future manual and reference materials. Is this true for all ways of solving convection (i.e. PowerLaw, Hybrid, etc.). Does the diffCoeff also need to have concentration factored out? \begin{equation}\nabla\cdot \left[ConvCoeff\nabla \phi \right] \end{equation} Thanks for your time. Buddy
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