downdraft


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downdraft

[′dau̇n‚draft]
(physics)
A current of air or other gas that travels downward, as during a thunderstorm or in a mine shaft.

downdraft, Brit. downdraught

1. A downward current of air in a chimney or flue, often carrying smoke with it.
2. A downward current of air resulting from the passage of air across a window surface, which cools it and increases its density so that it moves downward.

downdraft

downdraft
A relatively small-scale downward current of air. These are common near cumuliform clouds, in precipitation areas, and on leeward side of large features. They pose risks to light aircraft and helicopters, especially those flying near the ground.
References in periodicals archive ?
Since the introduction of the first self-ventilated cooktop in 1961 and downdraft ventilated range in 1965, Jenn-Air brand has consistently grown its reputation as a technology and design innovator.
ABOUT PHG ENERGY PHG Energy, based in Nashville was formed in 2010 to develop, manufacture, and install industrial- grade downdraft gasification systems.
Top performance with the Cattura downdraft also means quiet performance and convenient features.
Thermador Universal Cook 'n' Vent (UCV) downdraft ventilation quickly and quietly eliminates steam, smoke, heat, odors and grease from the kitchen with its new 600 CFM Integral Blower.
He said that because Jupiter emits more heat than it gets from the sun, that heat would be pushing upward and blocking the downdraft.
Other updated cooktop offerings from Jenn-Air include electric and gas downdraft cooktops with newly-designed knobs and a gas downdraft model with an advanced, invisible Durafinish(TM) coating designed to resist staining and yellowing and extend the cooktop's like-new appearance.
Their state-of-the-art equipment includes a Kansas Jack frame rack, a Shark computerized measuring system, and a Spraybake downdraft paint booth and prep station.
OTCQB: SWET) (the "Company"), the inventor of a large Solar Wind Downdraft Tower structure capable of producing abundant, inexpensive electricity, today announced the allowance of Patent Application Number 13/098,476, titled " Atmospheric Energy Extraction Devices and Methods" , by the United States Patent and Trademark Office.
Donaldson's High Efficiency Downdraft Bench is designed to enhance the air quality of mailrooms during the mail sorting and handling process.
The Company is continuing along a path of significant progress towards the development and ultimate realization of the first Energy Tower Downdraft Tower.
The mail will be individually opened and inspected by the handler on the included specially patented downdraft negative pressure table.