Individual particle based diffusion model - Model catalogue - Simulistics.com

Individual particle based diffusion model

Model : diffusion
Simile version : 3.1+
Date added : 2003-06-20
Keywords : Individual-based population dynamics ; Association submodel ;

Description

This models molecules in a lattice. They are held in their lattice positions by mutual repulsion. It starts with a low vibrational energy which gradually increases. They are divided into two types for display purposes to illustrate diffusion. To start with they vibrate around their intital positions, then occasionally exchange positions until above a certain energy the fixed positions are lost and they all get mixed.

Mutual repulsion is modelled by a relation between molecules. In order to get the display of two different colours two conditional models are made for the molecules, each existing for half the membership.

Files

Model file

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diffusion.sml