https://github.com/jrieke/diffusionlimitedaggregation

Simulation of 3D cluster formation through diffusion using Cython, NumPy and VPython
https://github.com/jrieke/diffusionlimitedaggregation

Last synced: 5 months ago
JSON representation

Simulation of 3D cluster formation through diffusion using Cython, NumPy and VPython

• Host: GitHub
• URL: https://github.com/jrieke/diffusionlimitedaggregation
• Owner: jrieke
• Created: 2014-03-17T21:42:10.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2020-10-22T22:48:31.000Z (almost 5 years ago)
• Last Synced: 2025-03-05T23:41:49.612Z (7 months ago)
• Language: Python
• Size: 1.3 MB
• Stars: 7
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
DiffusionLimitedAggregation

===========================

Simulation of 3D cluster formation through diffusion using Cython, NumPy and VPython.


Diffusion limited aggregation (DLA) is a process whereby diffusive particles attach to each other and form highly fractal clusters (Wikipedia, see also Witten / Sander 1983). 

DLA occurs in many diffusion-controlled systems, e. g. formation of snow flakes. 





This program uses random particle walks to simulate DLA in three dimensions. The particles are created on a random spot surrounding the center and perform a random walk until they come close to another particle and attach.


The alogrithm uses Cython (a Python package allowing C functionality inside Python) for speed-up and VPython for 3D visualization.





Run src/run.py to start. Requires Python 3.3, NumPy, Cython and VPython.




Simulation inside a cube of edge length 400 (various zoom levels, colors indicate particle order):