Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Educators · DLA Growth

DLA Growth for a rolling barrel

Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a rolling barrel live below — adjust the inputs and watch it respond, right in your browser.

Diffusion-Limited AggregationLive

fractal growth · Brownian sticking

Controls

Speed1×

Particles wander randomly from the edge and stick where they touch the cluster. The result is a branching fractal — like frost, coral, and mineral dendrites.

Presets

Speed (walkers/frame)

▶ Run in Python

Data Inspector

Cluster size1

Grid200×200

Fractal dim.≈ 1.71

Governing equation

R \approx N^{1/ D_{f}} = 1^{1/1.71} \approx 1

Reading this result: Each walker sticks on first contact, so exposed tips capture particles before they reach the interior (screening) — that feedback is what makes the cluster branch as an open fractal.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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Frequently asked questions

Is this good for educators?: Yes — this version of "DLA Growth for a rolling barrel" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.