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For Students · 3D CFD

3D CFD for a concrete column

Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a concrete column live below — adjust the inputs and watch it respond, right in your browser.

3D CFD StudioLive

3D Stable Fluids · Navier–Stokes

Controls

Speed1×

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

Presets

z-slice

Plume force

▶ Run in Python

Data Inspector

Grid24³

Cells17,576

SchemeStam Stable Fluids

IncompressibleJacobi projection

Governing equation

\frac{\partial u}{\partial t} + (u \cdot \nabla) u = - \frac{\nabla p}{ρ} + ν \nabla^{2} u + f, \nabla \cdot u = 0, ∣ f ∣ = 30

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.

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Frequently asked questions

Is this good for students?: Yes — this version of "3D CFD for a concrete column" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.