Cavitation in fluid mechanics and engineering normally is the phenomenon in which the static pressure of a liquid reduces to below the liquid's vapor pressure, leading to the formation of small vapor-filled cavities in the liquid. [1]

Cavitation occurs in fluid flow systems where the local static pressures are below the fluids vapor pressure. Cavitation is a common problem in pumps and control valves - causing serious wear, tear and damage.

2025年1月24日 · Cavitation, formation of vapour bubbles within a liquid at low-pressure regions that occur in places where the liquid has been accelerated to high velocities, as in the operation of centrifugal pumps, water turbines, and marine propellers.

2024年12月18日 · Cavitation is fundamentally driven by variations in fluid pressure that lead to the formation of vapor-filled bubbles within a liquid. When a liquid experiences a sudden drop in pressure, typically below the vapor pressure of any dissolved gases, …

We investigate the limiting mechanical tension negative pressure that liquid water can sustain before cavitation occurs. The temperature dependence of this quantity is of special interest for water, where it can be used as a probe of a postulated anomaly of its equation of state.

Cavitation occurs in fluid flow systems where the local static pressures are below the fluids vapor pressure. An introduction and definition of the Cavitation Number. Critical pressure ratios for water and other liquids.

The phenomenon of cavitation consists in the disruption of continuity in the liquid where there is considerable local reduction of pressure. By understanding the cavitation mechanisms, we can detect and prevent the phenomenon before failure occurs.

Cavitation begins when the local pressure falls far enough below the saturated vapour pressure, which is determined by the liquid's tensile strength at a given temperature.

2024年3月18日 · What Is Cavitation & Why Does It Occur? Cavitation can occur in centrifugal pumps for various reasons. One of those reasons is when the inlet pressure to a pump is low. Low inlet pressure can occur due to a low level of liquid in a tank that supplies the liquid to a pumping system or due to a leakage in the pipes causing the inlet pressure to drop.

2017年9月17日 · Cavitation occurs when the liquid in a pump turns to a vapor at low pressure. It occurs because there is not enough pressure at the suction end of the pump, or insufficient Net Positive Suction Head available (NPSHa). When cavitation takes place, air …