So, you suggest to calculate first the first equation, and then use the result for the second equation?
Am Dienstag, 18. Juli 2017 16:54:02 UTC+2 schrieb Wolfgang Bangerth: > > On 07/18/2017 07:21 AM, 'Maxi Miller' via deal.II User Group wrote: > > I have an equation system where the right hand side contains a time > > derivative, looking like > > > > < > https://lh3.googleusercontent.com/-zRtosh4pbeY/WW4KxK2_2qI/AAAAAAAACPQ/Ln8NbS9GxMQ5JUYTQIbuj7g19BvGh9mnwCLcBGAs/s1600/time_derivative.png> > > > > > > > > Without that time derivative I can solve it, but I do not know how to > include > > it here. Are there possible guidelines for that? One idea I got is from > here > > < > https://scicomp.stackexchange.com/questions/27363/approach-for-coupled-equations-with-included-time-derivative>, > > > > but this can not applied to the code in my case (used example 52 as > starting > > point), as I assume. > > Why can't this approach be used here as well? You can still use the first > equation to substitute the time derivative in the second equation. > > Best > W. > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: [email protected] > <javascript:> > www: http://www.math.colostate.edu/~bangerth/ > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
