Deflagration

A rapid combustion that spreads through a substance via heat transfer, typically at subsonic speeds. Unlike detonation, a deflagration does not involve a supersonic shock wave and the pressure increase is gentler. This process involves the generation of a flame front that propagates through the fuel and oxidizer mixture, consuming the material and releasing energy in the form of heat and expanding gases. Deflagrations are frequently encountered in situations involving flammable materials, such as explosions of dust clouds or the combustion of gunpowder.

Deflagration meaning with examples

• The silo was engulfed in a violent deflagration as accumulated grain dust ignited, spreading quickly throughout the structure. The resulting explosion, though not a detonation, caused significant damage due to the rapid expansion of gases. Emergency responders worked to extinguish the smoldering remains and investigate the cause of this rapid combustion.
• A small deflagration occurred in the chemical laboratory when a researcher accidentally mixed two incompatible substances. The rapid reaction produced a flash of light and a burst of heat, but, fortunately, the incident was contained and no major injuries resulted.
• The fireworks display relied on controlled deflagrations of gunpowder to create colorful bursts and aerial displays. Skilled technicians carefully timed each deflagration to orchestrate a dazzling show of light and sound, demonstrating their experience with the controlled burning of explosives.
• In a coal mine, methane gas leakage led to a deflagration, spreading rapidly through the tunnels when it came into contact with a spark, causing a terrifying blast. Fortunately, the resulting explosion, a less severe process than detonation, allowed some miners to escape.