deflagráció

Deflagration is a phenomenon of rapid combustion that propagates through a combustible material at subsonic speeds. Unlike detonation, which involves a supersonic shock wave, deflagration relies on heat transfer, such as conduction and convection, to ignite adjacent unburnt material. This process results in a relatively slow pressure rise and expansion of gases. The speed of deflagration is typically measured in meters per second and is influenced by factors like the chemical composition of the fuel, its physical state (solid, liquid, or gas), and the ambient conditions such as temperature and pressure. Examples of deflagration include the burning of gunpowder in a firearm or the combustion of a gas leak. In some contexts, deflagration can transition into a detonation if the conditions are right, leading to a much more violent and destructive event. Understanding the difference between deflagration and detonation is crucial in fields like explosives engineering, fire safety, and combustion science to properly assess and mitigate risks.