Build, Run and Analyze a Simple Model

 

Introduction

The step-by-step instructions in this tutorial will take you through the construction and analysis of a simple illustrative example - the flow of pollutants through two lakes connected to the sea by a river and an estuary.

We shall make the following assumptions:
  1. The water level in the lakes is at equilibrium, so the effects of pollutant dilution can be ignored.
  2. The amount of pollutant flowing through the river and the estuary is proportional to the amount of pollutant in the lake at their source:
    • The flow of pollutant in the river = 0.1 * the amount of pollutant in the top lake.
    • The flow of pollutant in the estuary = 0.05 * the amount of pollutant in the bottom lake.
  3. 1000 units of pollutant are dumped in the top lake at time (t) = 0.

To follow the examples in this tutorial, load the models in the ModelMaker 4 Tutorial folder.

The tutorial has been divided into 10 steps:

Step 1: Building and running the model
Step 2: Adding variables and influences
Step 3: Defining conditional components
Step 4: Adding defined values and independent events
Step 5: Adding component events
Step 6: Using lookup tables
Step 7: Running sensitivity analysis
Step 8: Running optimization
Step 9: Running minimization
Step 10: Running Monte Carlo analysis

  
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