Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Students · Casting & Solidification

Casting & Solidification for a reaction rate

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 reaction rate live below — adjust the inputs and watch it respond, right in your browser.

Heat 3d

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3D Heat Diffusion StudioLive

3D finite difference · ∂u/∂t = α∇³u

Controls

Speed1×

Presets

Diffusivity α

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Data Inspector

Grid40³

Cells64,000

SchemeExplicit FD

Governing equation

\frac{\partial u}{\partial t} = 0.12 \nabla^{2} u = 0.12 (u_{xx} + u_{y y} + u_{z z})

Reading this result: Heat spreads outward at a rate set by the diffusivity — each cell relaxes toward the average of its six neighbors every step.

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

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Phase Diagram

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Phase Diagram (Water)Live

solid, liquid, gas

Controls

Presets

Temperature (°C)

Pressure log₁₀(kPa)

A phase diagram maps which state — solid, liquid, or gas — a substance takes at each temperature and pressure. The lines are phase boundaries; cross one and the material transforms. All three meet at the triple point, and the liquid-gas line ends at the critical point beyond which liquid and gas become indistinguishable.

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Data Inspector

Phaseliquid

Temperature25 °C

Pressure100 kPa

Governing equation

\frac{d P}{d T} = \frac{L}{T Δ V}, T = 298.1 K, P = 100 kPa

Reading this result: Liquid: warm enough to melt yet below the boiling line at this pressure, so the stable state is liquid water.

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Frequently asked questions

Is this good for students?: Yes — this version of "Casting & Solidification for a reaction rate" 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.