-phase flow finite element model. Each node has two degrees of freedom:</p><div><ul><li>1 capillary phase pressure (Pc)</li><li>1 gas phase pressure (Pg)</li></ul></div><!--/introduction--><h2>Contents</h2><div><ul><li><a href="#1">Methods</a></li><li><a href="#2">Author</a></li><li><a href="#3">Version History</a></li><li><a href="#4">Class definition</a></li><li><a href="#5">Constructor method</a></li><li><a href="#6">Public methods</a></li><li><a href="#7">Static methods</a></li></ul></div><h2 id="1">Met