Multiphase flow through porous media
Full documentation can be found on github.
* [Theory manual](https://github.com/idaholab/moose/raw/devel/modules/richards/doc/theory/theory.pdf)
* [Test suite](https://github.com/idaholab/moose/raw/devel/modules/richards/doc/tests/tests.pdf)
* [Some comments for users](https://github.com/idaholab/moose/raw/devel/modules/richards/doc/user/user.pdf)
* [Q2P manual - this is an efficient but limited version of two-phase porous flow](https://github.com/idaholab/moose/raw/devel/modules/richards/doc/q2p/q2p.pdf)
This module is fully functional, fairly efficient, and still being used in simulations. However, it is slowly being deprecated in favor of the [Porous Flow](../PorousFlow) module. New users are encouraged to use the [Porous Flow](../PorousFlow) module.