On 5/6/22 14:54, Corbin Foucart wrote:
*** Caution: EXTERNAL Sender ***
Hello everyone,
I have a discontinuous velocity field composed of FE_DGQ elements; I would
like to access a modal representation of the solution coefficients on each
element and modify them (e.g., to perform slope limiting).
I was planning on
* manually constructing the Vandermonde matrix on each element to convert
the solution representation to a modal one
* modifying the solution coefficients
* transforming them back to a nodal representation
* updating the entries in the global solution vector
Is there a better way of doing this? I want to make sure I'm not reinventing
the wheel in the event that this functionality is already implemented.
That seems like a reasonable approach. I believe that there are functions in
FETools that already build these transfer matrices assuming there is a modal
element that fits what you want to do. You probably want to look at
FE_QHierarchical.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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