Representing Spatial Variability in Media Properties

In many cases, you will want the properties of the environmental media Materials (such as water, sand, clay, air) that constitute (are contained within) transport pathways. GoldSim provides two types of elements for defining media: Fluids and Solids. in your model to vary spatially. For example, the solubility for a 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 Water or the partition coefficient for a species in Sand may take on different values in different locations (pathways) in your model.

GoldSim provides a mechanism for representing such behavior. In general, it involves either using different media in different locations (e.g., defining two types of Sand) or creating "clones Sets of elements whose properties change simultaneously when any one member of the set is edited." of a single medium, which take on different values in different locations.