Gradient discretisation method: Difference between revisions

Revision as of 10:06, 15 November 2016

Revision as of 10:07, 15 November 2016

Line 127:

The [[mixed finite element method]] consists in defining two discrete spaces, one for the approximation of <math>\nabla \overline{u}</math> and another one for <math>\overline{u}</math>.

It suffices to use the discrete relations between these approximations to define a GDM. Using the low degree Raviart-Thomas[[Raviart–Thomas mixedbasis finite elementsfunctions]] allows to get the piecewise constant reconstruction property.

=== Mimetic finite difference method and nodal mimetic finite difference method ===