Please ignore -- I just realized I am being a dolt. For those of you who
stumble across this thread and would like avoid making the same mistake, I
believe that
psi.faceGrad.constrain(1.0*mesh.faceNormals,faceMask)
constrains the faceGrad to some value, here 1.0*mesh.faceNormals, where
faceM
Hi Dan,
In following up to the discussion we had so far, I have a question about a
variant of the special-case boundary condition presented so far.
The new (implicit Neumann) boundary condition for the 1D problem is now,
d_phi/dx at boundary = alpha + beta*phi at boundary
Where, alpha is
Just to be clear -- this problem is on a shell -- there is no radial
dependence, and the mesh is two-dimensional.
Jamie
On Fri, Jul 1, 2016 at 10:35 AM, Pringle, James
wrote:
> Dear fipy folks --
>
> I am solving a problem of ocean circulation on a thin spherical shell; the
> domain is too larg
Dear fipy folks --
I am solving a problem of ocean circulation on a thin spherical shell; the
domain is too large to ignore the spherical nature of the earth. The
problem is of the form
eq = (DiffusionTerm(var=Psi,coeff=DiffCoeff)+
ExponentialConvectionTerm(var=Psi,coeff=convCoeff))
And I
Thanks -- unfortunately, I have a complex real world mesh with interior
points (islands) which must be treated in an iterative fashion, so I need
to identify them in the grid.
On Fri, Jul 1, 2016 at 9:30 AM, Guyer, Jonathan E. Dr. (Fed) <
jonathan.gu...@nist.gov> wrote:
> You want `mesh._cellToCe
Thanks for help. That works very well!
2016年7月1日 21:25，"Guyer, Jonathan E. Dr. (Fed)" 写道：
> This is provided by the special `__call__` method of a CellVariable, which
> you would invoke with `var([[xval], [yval]])`.
>
> >>> help(fp.CellVariable.__call__)
>
> Help on method __call__ in module fipy
You want `mesh._cellToCellIDs`.
This isn't a basic question at all. We don't encourage thinking about the
discretized mesh and don't make it easy. _cellToCellIDs isn't documented
anywhere as far as I can tell.
> On Jun 29, 2016, at 4:07 PM, James Pringle wrote:
>
> I have to find a group of c
This is provided by the special `__call__` method of a CellVariable, which you
would invoke with `var([[xval], [yval]])`.
>>> help(fp.CellVariable.__call__)
Help on method __call__ in module fipy.variables.cellVariable:
__call__(self, points=None, order=0, nearestCellIDs=None) unbound
fipy.var
