Hi,
I am working on higher-order simulation using the hierarchich function
on quad8s.
My error-convergence plots give me theoretical convergence for first
and second order p, but the error stagnates for p > 2. I am speculating
that this might be due to the lower-order geometry, assuming that the x-
and y-coordinates are interpolated using Lagrange functions associated with
nodes of quad8.
I am considering adding higher order quads to get x- and
y- interpolation using higher-order Lagrange functions. Any thoughts on how
easy/difficult this might be?
Thanks,
Manav
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