blowdown

== English == === Etymology === Deverbal from blow down. === Noun === blowdown (countable and uncountable, plural blowdowns) (chemical engineering) The removal of liquid and solid hydrocarbons from a refinery vessel by the use of pressure. (industrial engineering) Cooling fluid discharged from a plant at the end of its cycle. (forestry) Uprooting, overtopping, or bole breakage of trees by the wind; windthrow and windsnap. (aviation) The action of aerodynamic forces to tend to cause a deflected control surface to return to its neutral position, or prevent the surface from deflecting past a certain point. (manufacturing, informal) An instance of blowing down with compressed air. ==== Derived terms ==== blowdown limit ==== Related terms ====