PPolySim OS
Use case · powered by Fin Cooling

Fin Cooling for a timber deck

Simulate a timber deck live in your browser. This runs the real Fin Cooling solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

Fin CoolingLive

Controls

Presets

A fin extends a hot surface into the air to shed more heat. Temperature falls along it as θ(x)/θ_b = cosh(m(L−x))/cosh(mL). Long, thin, low-conductivity fins run cool at the tip — wasted area, captured by the fin efficiency. Educational tool.

▶ Run in Python

Data Inspector

Tip temperature86.7 °C
Fin efficiency88%
Heat dissipated330.3 W

Governing equation

Reading this result: Balanced fin (mL=0.65): a practical compromise at 88% efficiency, with the tip still 62 °C above ambient.

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 Fin Cooling tool models a timber deck 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 Fin Cooling

Other ways to simulate a timber deck

Frequently asked questions

How do I simulate a timber deck?
Open this page and use the live Fin Cooling 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 timber deck from your own measurements.