PPolySim OS
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3D CFD for a water-tank stand

Simulate a water-tank stand live in your browser. This runs the real 3D CFD solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

3D CFD StudioLive

Controls

A dye plume rises through a full 3D incompressible flow. Scrub the z-slice to inspect the volume.

Presets

▶ Run in Python

Data Inspector

Grid24³
Cells17,576
SchemeStam Stable Fluids
IncompressibleJacobi projection

Governing equation

Reading this result: At moderate force (30) the incompressible constraint is visible: each step the projection removes divergence, so fluid pushed up the center must fold back down along the sides.

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

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About this simulation

The full 3D CFD tool models a water-tank stand 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 3D CFD

Other ways to simulate a water-tank stand

Frequently asked questions

How do I simulate a water-tank stand?
Open this page and use the live 3D CFD 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 water-tank stand from your own measurements.