Bernoulli / Venturi

Speed a fluid up and its pressure drops — Bernoulli's principle. Narrow the throat of a venturi and watch the trade between velocity and pressure play out.

Bernoulli / VenturiLive

faster flow, lower pressure

Controls

Presets

Inlet velocity (m/s)

Inlet area (m²)

Throat area (m²)

Fluid density (kg/m³)

Bernoulli’s principle: along a streamline, p + ½ρv² is constant. Squeeze the flow through a narrow throat and it speeds up (continuity), so its pressure drops. This is how carburetors, atomizers, and airplane wings work. Educational tool.

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Data Inspector

Throat velocity5.00 m/s

Pressure change-10.50 kPa

Throat pressure89.5 kPa

Governing equation

p + \frac{1}{2} ρ v^{2} + ρ g h = const \Rightarrow Δ p = \frac{1}{2} ρ (v_{1}^{2} - v_{2}^{2}) = - 10.50 kPa

Reading this result: Continuity pushes the fluid through the 2.5× narrower throat, speeding it from 2.0 to 5.0 m/s; Bernoulli’s constant p + ½ρv² then makes the throat pressure drop by 10.50 kPa — faster flow always sits at lower pressure.

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How it works

Along a streamline, p + ½ρv² + ρgh stays constant (Bernoulli). Continuity forces the fluid to speed up through a narrower area, so its pressure must fall. This underlies venturi meters, carburetors, atomizers, and the lift on a wing. Educational tool.

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Frequently asked questions

Is this bernoulli venturi simulator tool really free?▾

Yes. Bernoulli / Venturi runs entirely in your browser using your device's own compute, so local use is free forever. You only pay Compute Tokens if you scale a job to the cloud.

Do I need to install anything?▾

No. Everything runs client-side in a modern browser — no downloads, no license, no account required to start.

Can I save or share my simulation?▾

Create a free account to save projects, and use a shareable embed or minted DOI to publish a live, interactive version anywhere.

How accurate are the results?▾

The solver uses established numerical methods, but results are for research and educational purposes and should be validated against experiment or professional review before you rely on them.