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B. Pore connections in MDPN model
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B. Connections in a Multi-Directional Pore Network
(MDPN) model
As it was mentioned in section 2.2, in a MDPN model a maximum of 26 pore
throats may be connected to a pore body. As shown in Figure B.1, for a cubic
pore body, three kinds of connections can be distinguished: (a) 8 connections
to the corners (we refer to them as corner pore throats), (b) 12 connections to
the edges (edge pore throats), and (c) 6 connections to the faces of the pore
body (face pore throats). All these three types of connections are shown in
Figure B.1d.
Figure B.1: Different types of connections that pore throats can be
connected to a pore body; which are: (a) 8 connections to the corners,
(b) 12 connections to the edges, and (c) 8 connections to the faces of
pore body. The combination of all types of connections is also shown
(d).
Of course, many of these connection will be eliminated in order to obtain a
desired coordination number distribution [Raoof and Hassanizadeh, 2009].
When a pore body is invaded by the non-wetting phase, we assign 8 different
pressures to its 8 corner elements. So, in order to be able to calculate the
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