: 197 bytes
Desc: not available
URL:
http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20080429/c75d7f29/attachment.pgp
Well, I've worked hard on similar methods, but for incompressible NS
equations (pressure-convection preconditioners, Elman et al.). I
abandoned temporarily this research, but I was not able to get decent
results. However, for Stokes flow it seens to work endeed, but never
studied this seriously.
1) I believe the Wathen-Elman-Silvester stuff is the best out there of the
shelf. I love the review
A.C. de Niet and F.W. Wubs Two preconditioners for saddle point
problems in fluid flows
Int. J. Num. Meth. Fluids 2007: 54: 355-377
2) Note in there that Augmented Lagrangian
We are starting to provide this functionality in petsc-dev and it
will be in the
next release.
Barry
On Apr 29, 2008, at 6:54 AM, Jed Brown wrote:
This issue arose while discussing improved preconditioners for a
colleague's
libmesh-based ice flow model. Since libmesh is one of
Hi, Matt et al. --
Do people ever use standard projection methods as preconditioners for
these kinds of problems?
I have been playing around with doing this in the context of a staggered
grid (MAC) finite difference scheme. It is probably not much of a
surprise, but for problems where an
On Tue, Apr 29, 2008 at 12:28 PM, Boyce Griffith griffith at cims.nyu.edu
wrote:
Hi, Matt et al. --
Do people ever use standard projection methods as preconditioners for these
kinds of problems?
I have been playing around with doing this in the context of a staggered grid
(MAC) finite
Matthew Knepley wrote:
On Tue, Apr 29, 2008 at 12:28 PM, Boyce Griffith griffith at cims.nyu.edu
wrote:
Hi, Matt et al. --
Do people ever use standard projection methods as preconditioners for these
kinds of problems?
I have been playing around with doing this in the context of a
On Tue, Apr 29, 2008 at 12:54 PM, Boyce Griffith griffith at cims.nyu.edu
wrote:
Matthew Knepley wrote:
On Tue, Apr 29, 2008 at 12:28 PM, Boyce Griffith griffith at cims.nyu.edu
wrote:
Hi, Matt et al. --
Do people ever use standard projection methods as preconditioners for
