How do I simulate a rolling barrel?

Open this page and use the live Particle / N-Body tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a rolling barrel from your own measurements.

Use case · powered by Particle / N-Body

Particle / N-Body for a rolling barrel

Simulate a rolling barrel live in your browser. This runs the real Particle / N-Body solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Particle / N-Body StudioLive

symplectic Euler · impulse collisions

Controls

Speed1×

Presets

Particles

Pairwise gravity G

Downward gravity

Restitution

▶ Run in Python

Data Inspector

Bodies0

Kinetic energy0.00e+0

Mean speed0.0

Max speed0.0

Governing equation

F = \frac{G m _{1} m _{2}}{r ^{2}}, G = 60, N = 120

Reading this result: Moderate mutual gravity (G=60) lets the 120 bodies form loose orbiting structures instead of collapsing outright.

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

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About this simulation

The full Particle / N-Body tool models a rolling barrel with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Particle / N-Body

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Other ways to simulate a rolling barrel

Heat & Wave Fields for a rolling barrel GPU Compute (WebGPU) for a rolling barrel WebGPU Fluid for a rolling barrel GPU N-Body for a rolling barrel GPU PDE Solver for a rolling barrel GPU 3D Fluid for a rolling barrel

Frequently asked questions

How do I simulate a rolling barrel?: Open this page and use the live Particle / N-Body tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a rolling barrel from your own measurements.