Fluid dynamics, made visual

Pressure, flow and turbulence explained with clear diagrams, from Bernoulli's principle to the vortex in your drain.

Bernoulli Principle Explained

Why faster-moving fluid has lower pressure — the root of many machines.

How the Venturi Effect Works

A narrowing passage that speeds up flow and drops its pressure.

How a Siphon Works

Liquid climbing over a ridge and draining, driven by gravity and pressure.

Laminar Flow vs Turbulent Flow

Smooth layers versus tumbling eddies, and what decides which appears.

Boundary Layer Formation Along a Flat Plate

How a thin slowed layer grows from the leading edge of a surface.

Flow Separation & Wake Vortex Shedding

Where flow leaves a surface and sheds swirling vortices behind it.

Coanda Effect Explained

A jet of fluid clinging to a curved surface instead of flying straight.

Vortex Formation in a Drain Whirlpool

How a spinning sink drain organises itself into a funnel.

Jet Entrainment Principle

A fast jet dragging surrounding fluid along with it.

Cavitation Bubble Formation & Collapse

Vapour bubbles forming and collapsing, and why they pit metal.