Cavitation意思

Cavitation is a phenomenon that occurs when a liquid is subjected to rapid changes in pressure, causing the formation of small vapor-filled bubbles within the liquid. These bubbles can grow, collapse, or implode, and the resulting shock waves can cause significant damage to objects within the liquid, such as ship propellers, pumps, and other machinery.

Cavitation can occur in a variety of settings, including in the propellers of ships, in the cooling systems of power plants, and in the nozzles of water jets. It is a common problem in engineering applications where fluids are subjected to rapid changes in pressure, and it can lead to reduced efficiency, increased noise, and damage to equipment.

The formation of vapor bubbles in a liquid is known as nucleation, and it can occur when the pressure of the liquid drops below the vapor pressure of the liquid. When the pressure is restored, the bubbles can collapse, or implode, with a release of energy that can be powerful enough to cause damage.

Cavitation is a complex phenomenon that has been the subject of extensive research in the fields of physics, chemistry, and engineering. Understanding and preventing cavitation are important in the design and operation of equipment that involves the flow of liquids.