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OutflowDynamicStock can be used to model the outflow from a stock with inherent dynamic behavior (e.g., a conveyor or a higher-order delay). In these cases, the stock will set the flow and "signal" it via its →StockPort_Special.  

Implementation

Since neither negative outflows (after all, this is a unidirectional flow) nor preventing an outflow by "stock control" (e.g., the receiving stock at portB has stopInflow = true) are compatible with this flow element, the following assert conditions will have breaches of these conditions cause errors that will stop the simulation:

assert(portA.rate >= 0, "Rate of outflow must never be negative");
assert(not portB.stopInflow, "There must not be capacity restrictions (stopInflow) for the stock at portB");

Notes

• The OutflowDynamicStock flow will not observe the stopInflow flag of a stock connected to the B-side port. This means that the receiving stock must have sufficient capacity for the matter flowing out and capacity restrictions have to be imposed by an explicit control structure.

• To model a fractional outflow from a dynamic stock, SplitOutflowDynamicStock should be used.


• To model a "leak" SplitOutflowDynamicStock can be used with some fraction of the outflow being directed into a →Cloud.

See also

SplitOutflowDynamicStock