Venturi effect
The Venturi effect is the speeding up of air, or another fluid, as it passes through a constriction. The effect is visible in the capillaries of the human circulatory system or in large cities where wind is forced between buildings. Currently some sports cars use rear diffusers at the bottom of the car as a way to exploit the advantages of the Venturi effect. This effect is also fundamental in carburetors and aspirators.
See also
Categories: Fluid dynamics | Physics stubs