I see what you mean. In the meantime, I worked out how to automatically
generate meshes where the boundary faces have a matching discretization,
and I'm trying to work with PeriodicBoundary. However, I always get a
"Periodic boundary neighbor not found" error. I thought the matched-face
meshing mig
In that sense of "unstructured", strong enforcement of periodic
boundaries would lead to "locking". Imagine piecewise linear or
bilinear elements, with nodes like:
AB--C--D--E-F
on one side of the boundary and
G-H---I-J---K---L
on the other.
Side AB forces GH and HI to have the
On Tue, Aug 7, 2018 at 9:07 AM, Bailey Curzadd wrote:
> Hi there,
>
> I'm using libMesh to calculate the homogenized properties of
> microstructures with cuboid unit cells. To do this, the boundaries of the
> unit cell require periodic boundary conditions. As far as I can tell,
> though, the Peri
Posting reply to list.
On Tue, Aug 7, 2018 at 9:40 AM Bailey Curzadd wrote:
> That's correct.
>
> Paul T. Bauman schrieb am Di., 7. Aug. 2018, 15:32:
>
>> To clarify, do you mean unstructured here in the sense that the two
>> boundaries that are to be periodic are not simply a translation of on
Didn't hit reply-all.
On Tue, Aug 7, 2018 at 9:31 AM Paul T. Bauman wrote:
> To clarify, do you mean unstructured here in the sense that the two
> boundaries that are to be periodic are not simply a translation of one
> another? E.g. nodes do not match up?
>
> On Tue, Aug 7, 2018 at 9:08 AM Bail
Hi there,
I'm using libMesh to calculate the homogenized properties of
microstructures with cuboid unit cells. To do this, the boundaries of the
unit cell require periodic boundary conditions. As far as I can tell,
though, the PeriodicBoundary class only works with structured meshes, which
isn't r
Ben,
That makes sense but then what is PeriodicBoundary.myboundary and
PeriodicBoundary.pairedboundary ?
Best,
Ata
On Apr 22, 2013, at 1:26 PM, "Kirk, Benjamin (JSC-EG311)"
wrote:
> If I recall correctly it defines the displacement to the matching periodic
> boundary, so that ultimately
>
If I recall correctly it defines the displacement to the matching periodic
boundary, so that ultimately
U(x+d)=U(x)
On Apr 22, 2013, at 10:54 AM, "Ataollah Mesgarnejad"
wrote:
> Dear all,
>
> I was wondering if anyone can explain the vector disp for constructor for
> PeriodicBoundary? F
Dear all,
I was wondering if anyone can explain the vector disp for constructor for
PeriodicBoundary? For example in adaptivity example 5:
PeriodicBoundary horz(RealVectorValue(2.0, 0., 0.));
what does RealVectorValue(2.0, 0., 0.) do?
Thanks,
Ata
-
Hi Roy,
> Which formulation are you using? If it's velocity-pressure, then
> "make u, v, and w periodic" should be straightforward enough, but
> you'll have to do something more complex with p, and right now the
> DofMap APIs don't support anything more complex than "make every
> variable periodi
On Tue, 21 Jul 2009, David Knezevic wrote:
> I'm trying to do a Navier-Stokes channel flow problem with periodic BCs
> on the left and right boundaries;
Which formulation are you using? If it's velocity-pressure, then
"make u, v, and w periodic" should be straightforward enough, but
you'll have
hah, it's always the way isn't it: you figure it out just after emailing
the list...
I moved the adding of the periodic BC to after equation_systems.init()
and added the aptly named function call:
dof_map.create_dof_constraints(mesh);
and now it works!
Cheers,
Dave
David Knezevic wrote:
Hi all,
I'm trying to use libMesh's functionality for periodic boundary
conditions, but I can't quite figure it out... I looked it up in the
archives, but couldn't find any info.
I'm trying to do a Navier-Stokes channel flow problem with periodic BCs
on the left and right boundaries; I added:
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