Fluid Hammer | Water Hammer | Hydraulic Shock | How to Avoid It

Fluid hammer, also known as water hammer, is a phenomenon that occurs in fluid flow systems, particularly in piping systems, when there is a sudden change in fluid velocity. This change in velocity results in a pressure surge within the system, causing shock waves that can lead to loud banging or hammering noises, vibration, and potential damage to pipes, valves, and other components.
In industries, fluid hammer may be referred to using various terms, including:
1. Water hammer: Specifically used when referring to the phenomenon in water systems.
2. Hydraulic shock: Describes the sudden increase in pressure due to fluid velocity changes.
3. Surge pressure: Refers to the temporary increase in pressure caused by fluid hammer.
4. Pressure surge: Similar to surge pressure, highlighting the abrupt rise in pressure within the system.
5. Transient flow: Describes the non-steady-state flow conditions that occur during fluid hammer events.
These terms are used interchangeably depending on the context and the specific industry or application in which fluid hammer occurs.