Salt Diffusion Model

What is this model?

This is a system model of salt diffusion in water. Each of the cells starts with a certain concentration of salt, and then changes its concentration each tick based on the concentration of salt in all adjacent cells. Because the outer edge of the cell block is considered permanently zero (representing a large body of water), salt will slowly diffuse down to zero, beginning at the edges and progressing into the middle. Users can set the initial concentration, and then step through the simulation.

What can this Model be used to teach?

Connect recursive multiplication with exponential growth/decay

Understand the difference between agent and system models

Related Models

Simple Population Model (Excel)

Diffusino Limited Aggregation Model (AgentSheets)

Dosing Model (Vensim)