What did Windmill (Vertical-Axis) look like?

A vertical-axis wind rotor (resembling a revolving door) with sails fixed to the vertical shaft. The rotor drives the millstones below.

How did Windmill (Vertical-Axis) work?

Wind strikes the sails on the vertical axis → sails drive the main shaft → shaft transmits power via gears to drive the millstones for grinding grain.

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风磨

Windmill (Vertical-Axis)

A vertical-axis wind-powered machine: a vertical-axis wind rotor drives millstones. China's independently developed wind energy utilization device.

风磨

Scientific Principle

Wind energy conversion: kinetic energy of wind → mechanical energy of rotor rotation. Lift/drag principles of vertical-axis wind turbines.

风磨

Windmill (Vertical-Axis)

Scientific Principle

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