Table of Contents
Sub-set index list
A sub-set index list contains only a sub-set of the indices of another index list. One example of a sub-set is the built-in radionuclides index list.
One of the main uses of the sub-set index list is to remove unnecessary indices from the computations.
Example
Consider a model which deals with different types of pesticides. Thus, a material is created for each pesticide. Important when modeling pesticides is also the water content, so water transport must be modelled as well.
| Materials |
|---|
| DDT |
| ametryne |
| nicotine |
| propham |
| Water |
The equations for water transport are naturally very different from those of pesticide evolution, and for simplicity the model is divided into two parts.
Here two sub-sets of the Materials index list can be made: one sub-set that contains only water, and one containing the pesticides. The equations for water transport are given the Water sub-set index list and the others are given the Pesticides sub-set.