Specifying the Dimensions and Initial Quantity for a Pool

Within the Properties dialog, two sets of Units must be specified for a Pool (the Quantity Units and the Flow Units):

The primary output of a Pool is its Current Value (its Quantity). The Quantity Units determine the dimensions of this output. This output is always a value (it cannot be a condition). Moreover, it can only be a scalar (and hence, all of the inputs for the element must be scalars).

Note: If you need to model a vector or matrix quantity, you must use a Reservoir element

The Flow Units determine the display units for the Outflow outputs of the element. The dimensions of this output must be the same as those of the Quantity divided by Time. For example, if the Quantity Units have dimensions of Volume, the Flow Units must have dimensions of Volume/Time.

Note: GoldSim encourages (but does not require) you to specify Quantity Units for a Pool whose dimensions are consistent with materials. In particular, it expects the units to have dimensions of mass, volume, energy, amount, currency, or to be dimensionless. When you first specify your Quantity Units, GoldSim will warn you if your units do not have one of these dimensions. GoldSim will not, however, prevent you from using other units.

The Initial Quantity input to the Pool must have the same dimensions at the Quantity Units.

Note: The Initial Quantity must be a number or a link from a static variable (e.g., a constant Data element or a Stochastic).