On 2/14/20 5:34 AM, Richard Schussnig wrote:
Could the observed behaviour be caused by applying an iterative solver*?
(using ReductionControl and a reduction factor of 1e-13 which is really low)
* Block-triangular Schur-complement-based approach, similar as in
step-55 suggested in the further
Dear Richard,
We implement a quasi identical scheme in lethe (PSPG for continuity and
SUPG for momentum). You can find the code on the github, it might help you :
https://github.com/lethe-cfd/lethe/blob/master/source/solvers/gls_navier_stokes.cc
I can confirm that you should be getting order p+1
Add-on: The problem is in the function
RefineInterpolate::refine_and_interpolate_on_distributed_mesh()
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Add-on: The problem is in the function
RefineInterpolate::refine_and_interpolate_on_distributed_mesh()
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Dear deal.ii community,
I am trying to interpolate a distributed solution vector onto a globally
refined distributed mesh. Actually I need to globally refine more than once
but I believe I can iterate this procedure (is there a more efficient way?
The finite element can be vector or scalar valu
Krishna,
Adding to David's answer, mass matrix and laplace matrix are built for
multiple components separately, i.e. there is no coupling between them.
Best,
Daniel
Am Di., 18. Feb. 2020 um 10:17 Uhr schrieb David Wells :
> Hi Krishna,
>
> I'm not sure that I understand your question - those tw
Hi Krishna,
I'm not sure that I understand your question - those two functions
create a mass matrix and a laplace corresponding to the given
parameters (dof handler, mapping, quadrature, etc) - in the first case
only shape values are needed and in the second only shape gradients.
Hence the functio
In the tutorials, Step-23 suddenly gets rid of the assemble_system()
function and introduces MatrixTools::MatrixCreator::create_mass_matrix and
MatrixTools::MatrixCreator::create_laplace_matrix
However, there is no discussion whatsoever of how the appropriate update
flags (bitfields) of the Fev
