Term Category: Acoustics
The Bernoulli Effect, named after the Swiss mathematician Daniel Bernoulli, refers to a principle within fluid dynamics that states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or potential energy of the fluid. In other words, within a steady, incompressible flow of fluid, the total energy along a streamline (path that a fluid particle will follow) remains constant, which means that when a fluid (liquid or gas) increases in velocity, it must result in a reduction in the internal pressure or energy of the fluid.
This principle can be observed in various everyday phenomena. For instance, when you drink from a straw, the air pressure inside the straw decreases as you suck the air out, which is replaced by the liquid which is pushed up into the straw by the higher outside air pressure.
In the context of singing, the Bernoulli Effect plays a crucial role in how the vocal folds function to produce sound.
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