Hi Jon,
Thanks! It works perfectly. However, we are also trying to implement a sensible
adaptive time-step control for this problem and have faced some problems.
If the default solver (trilinos LinearGMRESSolver) is used we find that the
mobility/diffusion coefficient and the thermodynamic
On Apr 7, 2014, at 4:42 AM, Joakim Odqvist odqv...@kth.se wrote:
If the default solver (trilinos LinearGMRESSolver) is used we find that the
mobility/diffusion coefficient and the thermodynamic factor is only evaluated
at the beginning of the time-step which causes numerical instabilities if
Hi,
Thank you for the quick reply.
This is a real problem we have at the moment, and the coeff doesn't (as far
as we can see) update itself.
No, you are right, the specific solver shouldn't have any bearing on this
problem I guess.
Joakim
-Ursprungligt meddelande-
Från:
On Thu, Apr 3, 2014 at 1:08 PM, Seufzer, William J. (LARC-D307)
bill.seuf...@nasa.gov wrote:
Dan,
Do you mean to set the environment variable with os.environ? Would this be
different from setting the variable as part of the PBS start up script?
Yes.
Are you suggesting that all cores are
Hi there,
I'm attempting to implement an operator-split scheme that requires me to
apply an Adams Bashforth scheme to a convection term (distinct from other
terms, like diffusion or reaction). The Fipy example covering the similar
Crank-Nicholson scheme showed the approach for an entire equation,
(Oops, that CellVariable should be a FaceVariable.)
Charles
On Mon, Apr 7, 2014 at 11:08 AM, Charles Reid charlesre...@gmail.comwrote:
Hi there,
I'm attempting to implement an operator-split scheme that requires me to
apply an Adams Bashforth scheme to a convection term (distinct from
