Blowdown or Blowing down may refer to:
*
Windthrow
In forestry, windthrow refers to trees uprooted by wind. Breakage of the tree bole (botany), bole (trunk) instead of uprooting is called windsnap. Blowdown refers to both windthrow and windsnap.
Causes
Windthrow is common in all forested ...
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
* Blowdown, a process plant controlled or
emergency depressurization
*
Boiler blowdown
Boiler blowdown is water intentionally wasted from a boiler to avoid concentration of impurities during continuing evaporation of steam. The water is blown out of the boiler with some force by steam pressure within the boiler. Bottom blowdown use ...
, a steam-boiler process to remove impurities
* ''
Blowdown'', a television series focusing on
explosive demolition
* Diving bell or hyperbaric chamber
blowdown (diving), the compression of the pressurised chamber atmosphere, or displacement of ambient pressure water by adding high pressure gas through a blowdown valve.
* in mathematics, the inverse of
blowing up
In mathematics, blowing up or blowup is a type of geometric transformation which replaces a subspace of a given space with the space of all directions pointing out of that subspace. For example, the blowup of a point in a plane replaces the poin ...
* "Blowing Down", song from the Digable Planets studio album ''
Blowout Comb''
{{disambiguation