Do I need to install anything?

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

For K-12 Students · Bernoulli / Venturi

Bernoulli / Venturi for a playground swing

Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a playground swing live below — adjust the inputs and watch it respond, right in your browser.

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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Frequently asked questions

Is this good for k-12 students?: Yes — this version of "Bernoulli / Venturi for a playground swing" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.