Overview of Stock Elements

Stocks elements are elements which impart inertia and memory to a system. These kinds of elements are responsible for internally generating the dynamic behavior of a system. At any point in time in a simulation, the outputs of stock elements are computed based on the historical values of their inputs. Mathematically, stocks represent time integrals.

Element Default Symbol Browser Icon Function
Integrator Integrates values. Also can compute moving average of a specified input.
Reservoir Integrates (and conserves) flows of materials, allowing for upper and lower bounds to be specified.
Pool More complex version of Reservoir, making it easier to model multiple inflows and outflows.

Related topics…