Pde lumped mass - Githubissues

nutofem / nuto

NuTo - yet another finite element library

https://nuto.readthedocs.io

Boost Software License 1.0

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Closed pmueller2 closed 6 years ago

pmueller2 commented 6 years ago

Adds mass lumping. Procedure works as follows:

compute local (full) matrix
take only the diagonal entries
scale all entires with a factor so that the sum of all matrix entries is the same as for the full matrix
return the diagonal

To be used for the mass matrix in explicit time integration schemes.