Deactivating Decay

In some situations, after defining decay rates and daughter products for your 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)., you may want to carry out some simulations in which the species do not decay (i.e., decay is deactivated). This is particularly useful in the early stages of your modeling effort when you are testing and debugging your model. Temporarily deactivating decay makes it much easier to interpret results and assure yourself that the model has been correctly implemented.

GoldSim provides for this on the Contaminant Transport tab of the Options dialog (accessed via Model | Options):

If you check the Disable decay of species box, decay will be disabled (all decay rates will be ignored and assumed to be equal to 0).