Package Contents

	Cloud Reservoir (stock/level) with an infinite capacity
	Decline A stock is drained at a given rate
	ExogenousChange A stock is filled or drained at a given rate
	ExponentialChange Exponential growth or decline of connected stock
	ExponentialDecay A stock is drained at a rate proportional to its content
	ExponentialDecline Exponential decline of connected stock
	ExponentialGrowth Exponential growth of connected stock
	Growth A stock is filled at a given rate
	LogisticGrowth Logistic growth model

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This pacakge contains sources or sinks with regard to the flow of conserved quantities ("material flows"). While in the narrow sense only a cloud (i.e., a stock with infinite capacity) is a source or sink, in this library we will extend the definition of a source or sink to also pertain to inflows from or outflows into a stock with infinite capacity, e.g., the cloud will be integrated into a flow element with a single flow port.

Notes

The direction of flow will not always be clear for SourcesOrSinks elements. For a constant or an exogenous input given the rate of flow these sign conventions are to be observed:

Element	Behavior for positive rate
Sink	DRAIN connected stock
Source	FILL connected stock
SourceOrSink	FILL connected stock

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Notes

See also