You can't coarsen beyond the original mesh. However can you approach the problem differently? I suggest you start from a coarse mesh, refine it several times up front to recover a suitable fine mesh, then run your simulation. Depending your needs that initial refinement can be uniform or it can adapt to some initial condition if necessary. On Fri, Mar 4, 2016 at 5:01 PM Giorgio Bornia <giorgio.bor...@gmail.com> wrote:
> I have an original mesh that I need to coarsen. > So does the previous answer mean that I cannot process it with libmesh > for that purpose? > > If so, are there any tools around that do that? > > Best, > Giorgio > > > > On Wed, Feb 10, 2016 at 5:21 PM, John Peterson <jwpeter...@gmail.com> > wrote: > > > On Wed, Feb 10, 2016 at 4:20 PM, Junchao Zhang <junchao.zh...@gmail.com> > > wrote: > > > > > In libmesh, can adjacent elements be coarsened into new elements that > > do > > > not exist before? For example, a 2x2 grid (mesh) is refined into 4x4 > > grid. > > > Can the interior 4 elements be coarsened into one? > > > I feel it is mathematically allowed, but don't know if it is feasible > > in > > > practice. > > > > > > > No, you cannot coarsen beyond the level of the original mesh. > > > > -- > > John > > > > > ------------------------------------------------------------------------------ > > Site24x7 APM Insight: Get Deep Visibility into Application Performance > > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > > Monitor end-to-end web transactions and take corrective actions now > > Troubleshoot faster and improve end-user experience. Signup Now! > > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > > _______________________________________________ > > Libmesh-users mailing list > > Libmesh-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/libmesh-users > > > > > > -- > Giorgio Bornia, Ph.D. > Assistant Professor > Department of Mathematics and Statistics > Texas Tech University > Lubbock, TX 79409-1042 > phone: +1 806.834.8754 > fax: +1 806.742.1112 > website: http://www.math.ttu.edu/~gbornia > > ------------------------------------------------------------------------------ > _______________________________________________ > Libmesh-users mailing list > Libmesh-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/libmesh-users > ------------------------------------------------------------------------------ _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
