What is Cavitation and How Does it Work?

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Every time you drive a boat, turn on a pump, possibly even start your faucet, tiny and destructive underwater explosions occur. These explosions are rapidly-generated steam bubbles caused by boiling water in a process called cavitation.

The basics of cavitation are based on Bernoulli’s principle. It states that the pressure of a fluid decreases as the velocity increases and visa-versa. In combination with this idea, we have to remember that the boiling point of water changes based on the pressure it is under – why pressure cookers make cooking more efficient. When we grasp these concepts, we can begin to understand why cavitation occurs.

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