Network pathways provide a computationally
efficient way to simulate large, complex networks of one-dimensional conduits in
order to describe contaminant transport through fractured rock systems.Network pathways provide a computationally
efficient way to simulate large, complex networks of one-dimensional conduits in
order to describe contaminant transport through fractured rock systems.
A Network pathway is made up of multiple “pipes”. Each pipe has all the features and capabilities of the Pipe pathways discussed above. Hence, Network pathways are effectively large collections of Pipe pathways. The network, however, can be very large (e.g., 100,000 pipes). This allows complex and realistic fracture systems to be simulated.
Network pathways require specification of a fracture network, which can be entered by hand, but more likely, would be generated by a discrete fracture network generation and flow simulation code. The fracture network identifies all of the pipes in the network, the manner in which they are connected, and each pipe's geometry and flow rate. In addition, for each pipe, it specifies the fracture set, which identifies the transport properties of the pipe (e.g., porous infill material, coating material, properties of matrix diffusion zones, etc.).
GoldSim uses a Laplace transform algorithm to solve complex fracture networks in a very efficient manner. In fact, even large networks (100,000 pipes or more) can be solved relatively quickly.
To facilitate representation of uncertainty in the fracture network connectivity and flow properties, you have the option to define a number of separate fracture networks and instruct GoldSim to randomly select one of these every realization.
Note: Network pathways are
only available within the RT Module.
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