Inputs and Outputs Associated with Direct Transfer Mass Flux Links

When a direct transfer mass flux link is created, GoldSim creates several new inputs and outputs on the two linked pathways which subsequently appear in the browser An alternative view of a GoldSim model, in which elements are displayed in a tree, and organized either hierarchically, or by type. view and interfaces for these pathways.

On the "from" or "outflow" pathway (the pathway from which the mass is flowing):

• GoldSim creates a new output named Direct_transfer_rate_to_Path2, where Path2 is the name of the linked pathway (toward which the mass is flowing). For example, if the Outflow pathway was named Pond and the Inflow pathway was named Plant, GoldSim would create a new output on the Pond pathway called Direct_transfer_rate_to_Plant. Like all GoldSim outputs, when the output appears in an expression, the name of the element is included prior to the output name (Pond.Direct_transfer_rate_to_Plant). This output represents the mass flux itself, and is a vector A one-dimensional array. by 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). with dimension of mass/time.

Note: Although this output is referred to as a "flux", it technically is a mass rate, not a flux (since fluxes 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/time/area). The term "flux" is used here for convenience.

• GoldSim creates a new input named FractionalRates. This is the transfer rate in the link. It has dimensions of inverse time and is a vector by species.

These new items are organized under a "folder" within the browser view of the element called Outflows:

On the "to" or "inflow" pathway (the pathway to which the mass is flowing):

• GoldSim creates a new input named Direct_transfer_from_Path1, where Path1 is the name of the linked pathway (from which the mass is flowing). For example, if the Outflow pathway was named Pond and the Inflow pathway was named Plant, GoldSim would create a new input on the Plant pathway called Direct_transfer_rate_from_Pond. This input represents the mass flux itself, and is a vector by species with dimension of mass/time.

Note: Although this output is referred to as a "flux", it technically is a mass rate, not a flux (since fluxes have dimensions of mass/time/area). The term "flux" is used here for convenience.

This new item is organized under a "folder" within the browser view of the element called Inflows:

Note: If you create multiple direct transfer fluxes between the same two Cells, GoldSim will append the letter "c" and a number to the end of the input and output names. For example, if a second direct transfer flux was added from the PondCell to the Plant Cell, the output on the Pond Cell would be named "Direct_transfer_rate_to_Plantc2" and the input on the Plant Cell would be "Direct_transfer_rate_from_Pondc2".