.BusinessSimulation.Flows.Interaction.BrokenTransitionPull

Information

This information is part of the Business Simulation Library (BSL). Please support this work and ► donate.

This is a variant of the classical broken flow (→BrokenTransition) structure that allows for a different parameterization:  In this component the given value for the rate (rate or u_rate) relates to the inflow to stock B, while the factor of proportionality (factor or u_factor) determines the outflow from stock A that is necessary for this process.

A typical application would be to have a given rate of production (here the stock B would be the stock of finished goods) which needs an outflow from the stock of materials that is proprotional to the rate of production according to a factor determined by the bill of materials.

Hence:

rate of outflow from A = rate of inflow to B × factor of proportionality

The factor of proportionality will be given in base units of A per base units of B, so that the resulting outflow from A will have proper units [base units for a flow of A]. 

Implementation

Diagram for BrokenTransitionPull

Notes

• Unlike the classical broken flow structure, setting the rate for the stock B might not take into account the availability of material in the stock A; so this has to be taken care of by the modeler explicitly.


• Great care has to be taken entering the factor as it needs to be given in base units of stock A per base units of stock B. If the unit attribute is left an empty string (default), then fitting units will automatically be deduced effectively short-circuiting unit checks.


• To more robustly specify conversion factors, upon useExplicitRatio = true a constant ratio inputA per outputB can alternatively be given, where inputA and outputB will have units according to OutputType_A and OutputType_B, respectively.

See also

BrokenTransition, Transition

Revisions

• Value for the optional parameter rate changed to unspecified in v2.1.0.


• Component type for parInflowRate_B changed to ConstantConverter in v2.2.


• Type for factor changed to Real in v2.2.


• Added useExplicitRatio option for more convenience in unit conversions in v2.2.