Saving Results for a Network Pathway

Network pathways produce the following outputs:

• the total mass of each species The chemical (or non-chemical, such as bacterial or viral) constituents that are stored and transported through an environmental system in a contaminant transport model. In GoldSim, the Species element defines all of the contaminant species being simulated (and their properties). in the pathway;
• the average concentration of each species in the Reference Fluid A special type of Fluid element that provides a basis for defining partition coefficients between media for the various species in the model (i.e., the ratio of the species’ concentration in the medium to its concentration in the Reference Fluid at equilibrium). exiting the pathway; and
• the mass flux of each species for all specified advective Outflows.

These outputs are all vectors by species. Reference Fluid concentrations have dimensions An output attribute for an element that defines the dimensionality (in terms of Length, Time and other fundamental dimensions) of the output. of mass/volume. Fluxes have dimensions of mass/time.

You specify that you wish to save these results in two different places:

1. Species masses in the pathway, concentrations in the Reference Fluid exiting the pathway, and discharges from Watch Groups are saved by clicking Final Values and/or Time History at the bottom of the Network pathway A transport pathway element that provides a computationally efficient way to simulate large, complex networks of one-dimensional conduits in order to describe contaminant transport through fractured rock systems. editing dialog:
   
   
2. Fluxes are saved by selecting a mass flux link An interconnnection between two transport pathways that defines the rate at which species move between the pathways. in the Inflows or Outflows tab for a linked pathway and clicking Save Final Values and/or Save Time History at the bottom of the dialog:
   
   

If you are running multiple realizations, the Time History box is ignored, and unless an output of the element is connected to a Time History Result element, no time history results will be saved at all for the element. In fact, in such a case, the Save Results section would look like this:

In this particular case, because the simulation involves multiple realizations, the "Time History" checkbox is replaced by a "Monte Carlo Histories" checkbox. This checkbox is grayed out, since it is only used for information purposes. You cannot edit it directly, and its appearance is completely determined by whether or not the output is connected to a Time History Result element. That is, in order to save time history results for a Network output when running multiple realizations, you must connect it to a Time History Result element A Result element that shows the history of a particular output as a function of time..

The display units The units (e.g., m, g, $/day) in which an output is displayed within GoldSim. for masses, concentrations and fluxes for all pathways are specified in the Contaminant Transport tab of the Options dialog (accessed via Model | Options... from the main menu):