PPolySim OS
Use case · powered by Otto Cycle

Otto Cycle for a fabric weave

Simulate a fabric weave live in your browser. This runs the real Otto Cycle solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

Otto Cycle (Engine)Live

Controls

Presets

The Otto cycle idealizes a gasoline engine: adiabatic compression, constant-volume combustion, adiabatic expansion (the power stroke), and exhaust. Its efficiency, η = 1 − 1/r^(γ−1), depends only on the compression ratio. Higher compression means more efficiency — until the fuel pre-ignites and knocks, which is why octane rating matters.

▶ Run in Python

Data Inspector

Efficiency58.5%
Compression ratio9:1
γ1.40

Governing equation

Reading this result: Efficiency (58%) depends only on the 9:1 compression ratio and γ, not on how much fuel you burn — adding heat gives more power at the same efficiency ceiling.

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

or unlock everything with Pro →

About this simulation

The full Otto Cycle tool models a fabric weave 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 Otto Cycle

Other ways to simulate a fabric weave

Frequently asked questions

How do I simulate a fabric weave?
Open this page and use the live Otto Cycle 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 fabric weave from your own measurements.