SIMILE : Modeling tool

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SIMILE Modeling tool

• Modeling river systems
• SIMILE as a modeling tool
• - What it is what can we use it for?
• ? Navigate in SIMILE
• - Example Bank account

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Models as a management tool Models as a
scientific tool
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SIMILE as a modeling toolwww.simulistics.com
Visual modeling environment - Build model
without learning programming - Display concept
relationship using diagram stocks,
flows and influences - GUI for simulation
control specifying inputs - Visualize
compare the model behaviors in
graphs, tables
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SIMILE as a modeling toolwww.simulistics.com
What can we use it for? - Rate expressions
for biological, chemical, or physical
processes (differential equations) Ex Mass
balance or accounting, Growth dynamics,
Respiration - Scenario analysis Ex
Effect of flow velocity on gas exchange between
river-atmosphere
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SIMILE 4.4Download http//simulistics.com/produ
cts/simile.php
Example models in ecosystem science Download ?
Models
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Navigate in SIMILE
Start gt All Programs gt Simulistics gt Simile
v4.4
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Navigate in SIMILE
Overall modeling scheme
Run-time environment
Enter values for parameters/stocks or Describe
equations
Choose output display Set run conditions
Conceptual design (diagram)
Run model
Tutorial http//simulistics.com/tutorials/inde
x.htm Example Bank account
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Bank account Conceptual design
Stock or compartment an account Flows
Interest withdrawal Parameter Interest rate
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Bank account Enter values for parameters/stocks
or describe equations
For time-dependent model - Set initial value
for stocks (compartments) - Define parameters
(flows variables)
Direct values
Equations to describe behaviors
Constant
Time-series
Variables that influence the parameter
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Run-time environment
Create plot
Create table
Run

• 1. Set execution condition in Run
• control Run settings
• 2. Set display preference
• 3. Run

List of parameters/stocks
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Run model view results