Blowdown may refer to:
*
Windthrow or forest blowdown, a felling of trees by windstorm
*
Blowdown stack
A blowdown stack is an elevated vent or vertical stack that is used to vent the pressure of components of a chemical, refinery or other plant if there is a process problem or emergency. A blowdown stack can be used to complement a flare stack or a ...
, a vertical containment structure at a refinery or chemical plant
*
Boiler blowdown, a steam-boiler process to remove impurities
* ''
Blowdown'', a television series focusing on
explosive demolition
* accidental pressure loss in a nuclear
reactor pressure vessel
{{disambiguation