non-penetration condition via Lagrange multipliers
15 Sep
2010
15 Sep
'10
7:02 a.m.
FYI:
I have just implemented a term allowing to impose the non-penetration condition in the weak sense via Lagrange multipliers. The multipliers variable lives one a surface and as such uses the new SurfaceField class.
There is a new example (and test) examples/biot/biot_npbc_lagrange.py, which you can compare with the "old" way used in examples/biot/biot_npbc.py - the results are pretty similar which is good.
r.
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Robert Cimrman