WOLFRAM SYSTEM MODELER
Reverse_LevelLevel of the System Dynamics methodology with time reversal |
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Wolfram Language
In[1]:=
SystemModel["SystemDynamics.Levels.Reverse_Level"]
Out[1]:=
Information
This is a time-reversible continuous Level model of the System Dynamics methodology.
Given the following state-space model:
der(x) = f(x,t);
Time reversal can be achieved by placing a minus sign in front of each state equation:
der(x) = -f(x,t);
The Reverse_Level model contains a modulating variable dir that determines the direction of time flow:
der(x) = dir*f(x,t);
Parameters (2)
| x0 |
Value: 0 Type: Real Description: Initial condition |
|---|---|
| xm |
Value: 0.0 Type: Real Description: Minimum level |
Inputs (1)
| dir |
Type: Real Description: Direction of time flow |
|---|
Outputs (3)
| level |
Type: Real Description: Reversible state variable |
|---|---|
| rate_in |
Type: Real Description: Inflow |
| rate_out |
Type: Real Description: Outflow |
Connectors (7)
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u1 |
Type: MassInPort Description: Inflow variable |
|---|---|---|
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u2 |
Type: MassInPort Description: Outflow variable |
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y |
Type: MassOutPort Description: Reversible state variable |
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y1 |
Type: MassOutPort Description: Reversible state variable |
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y2 |
Type: MassOutPort Description: Reversible state variable |
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y3 |
Type: MassOutPort Description: Reversible state variable |
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y4 |
Type: MassOutPort Description: Reversible state variable |
Used in Examples (1)
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SystemDynamics.WorldDynamics.World2 5th Scenario |