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Nozzle & Jet for a smart meter

Simulate a smart meter live in your browser. This runs the real Nozzle & Jet solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:StudentsResearchersEducatorsEngineersHobbyists & MakersK-12 StudentsFirst Responders
1

Fluid

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2D Fluid (CFD) StudioLive

Controls

Click and drag on the canvas to inject dye and velocity.

Presets

▶ Run in Python

Data Inspector

Grid96×96
Total dye0
Mean speed0.000
Max speed0.000
Enstrophy0.00e+0

Governing equation

Reading this result: Near-zero viscosity: momentum barely dissipates, so vortices persist and the flow tips into turbulent, chaotic mixing.

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

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2

Mach Cone

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Mach Cone & Sonic BoomLive

Controls

Presets

Below the speed of sound, pressure waves race ahead of an aircraft. At and above Mach 1 the aircraft outruns its own sound, and the waves pile into a cone-shaped shock — the sonic boom. The faster it flies, the more sharply swept the Mach cone: its half-angle is arcsin(1/M). This geometry governs supersonic and hypersonic vehicle design.

▶ Run in Python

Data Inspector

Mach2.0
Regimesupersonic
Cone half-angle30.0°

Governing equation

Reading this result: At Mach 2.0 the half-angle is arcsin(1/M) = 30.0° — faster flight sweeps the Mach cone tighter around the flight path.

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

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3

Rocket

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Rocket Equation (Tsiolkovsky)Live

Delta-v budget

5524 m/s

LEO (Earth orbit)
59%
Moon transfer
44%
Mars transfer
42%
Escape Earth
49%

Controls

The equation that rules spaceflight. Your Δv budget depends only on exhaust velocity and the ratio of full-to-empty mass — and it's brutally logarithmic.

Presets

▶ Run in Python

Data Inspector

Δv5524 m/s
Mass ratio5.00
Propellant400 t
Exhaust vel.3432 m/s

Governing equation

Reading this result: At 5524 m/s this stage cannot reach orbit; since Δv grows only with the log of mass ratio, big gains need a much emptier tank or higher Isp.

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 Nozzle & Jet tool models a smart meter 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 Nozzle & Jet

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Frequently asked questions

How do I simulate a smart meter?
Open this page and use the live Nozzle & Jet 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 smart meter from your own measurements.