Within GoldSim, there are two ways to introduce mass into the system:
- An initial mass or a rate of addition of mass can be directly specified for one or more pathways in the system; and
- When using
the RT Module, the user can define the properties of one or more
Note: Sources are only available within the RT Module.
Often, you can use the former method to introduce mass into your model. In many cases, however, direct specification of an initial mass or rate of release at various locations is not possible or appropriate, and explicit modeling of the source is necessary.
Note that the definition of what is meant by a "source" is completely determined by you. A "source" may represent an entire landfill, or a single buried drum; a group of leaking underground tanks or a complex engineered facility. The key point is that the source provides mass input to the pathways that then transport the mass through the system, as illustrated below.
The properties of a source which you define consist of 1) the failure rate of any barriers (e.g., drums, boxes) which must fail before the 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). are released; and 2) the degradation rate of any matrix A two-dimensional array. (e.g., cement, grout) in which the species are bound, which must degrade before the species are released.