WOLFRAM SYSTEMMODELER

Level1a

General System Dynamics level with no outflow

Diagram

Wolfram Language

In[1]:=
Click for copyable input
SystemModel["SystemDynamics.Levels.Level1a"]
Out[1]:=

Information

This is the general continuous Level model of the System Dynamics methodology with a single inflow and no outflow. It computes the level by integrating over the inflow rate.

Public Parameters (1)

x0

Value: 0

Type: Real

Description: Initial condition

Outputs (1)

level

Type: Real

Description: Continuous state variable

Connectors (6)

u1

Type: MassInPort

Description: Inflow variable

y

Type: MassOutPort

Description: State variable

y1

Type: MassOutPort

Description: State variable

y2

Type: MassOutPort

Description: State variable

y3

Type: MassOutPort

Description: State variable

y4

Type: MassOutPort

Description: State variable

Components (1)

Integrator1

Type: Integrator

Used in Components (8)

Pollution_Dynamics

SystemDynamics.WorldDynamics.World3

Pollution dynamics

NR_Resource_Utilization

SystemDynamics.WorldDynamics.World3

Utilization of non-recoverable natural resources

Land_Fertility

SystemDynamics.WorldDynamics.World3

Land fertility

Labor_Utilization

SystemDynamics.WorldDynamics.World3

Utilization of the labor force

Food_Production

SystemDynamics.WorldDynamics.World3

Food production

Arable_Land_Dynamics

SystemDynamics.WorldDynamics.World3

Arable land dynamics

SMTH3

SystemDynamics.Functions

Third-order exponential smoothing

SMTH1

SystemDynamics.Functions

First-order exponential smoothing