Inactive nodes may be specified using any of the following methods:
Declares domains of nodes as being inactive.
Declares inactive nodes via an external file. This can be particularly useful when the inactive nodes domains are automatically generated.
Declares inactive nodes based on rock/soil type.
IJK Indexing
As no rock/soil types are defined for IJK Indexing, the rock/soil type association is not recognized in conjunction with IJK Indexing.
Declares inactive nodes via a formatted (ASCII) or binary external file containing rock/soil indices for the entire domain, where a zero entry represents an inactive node. This option is useful when the rock/soil zonation has been entered via an external file, as the same file can be used to define both the rock/soil zonation and the inactive nodes when zero indices are used for inactive nodes.
The multiple entries option allows a combination of input options on a single Inactive Nodes Card (e.g., explicit declaration and rock/soil type association).