convection currents

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convection currents

nplcorrenti fpl convettive
References in periodicals archive ?
With forced-air warming, mean temperatures were significantly elevated over the surgical site, which made one study's authors conclude, "Forced-air warming generates convection current activity in the vicinity of the surgical site.
You can also use this to demonstrate convection current.
The sun heats the hill so there's a convection current.
A resulting convection current passes along the gravity field.
As glaciers melted, massive quantities of water poured into the North Atlantic, lowering the ocean salinity that helps power a major convection current that acts like a conveyor belt to carry warm tropical surface water north and cooler, heavier subsurface water south.
This contains adjustable louvres and ventilators so that there is usually a convection current rising up through the continuous long thin thermal chimney between the sheets of glass: air enters at the bottom through ventilating flaps and is expelled through similar devices at the top.
Panes at the top of the vertical south-east facing glass wall are opened automatically too, so causing a convection current upwards under the glass roof, which draws overheated air out from the body of the conservatory.
The temperature differential between the auditorium and the stage defines the direction of a major convection current which circulates across the proscenium arch.
NASA SPoRT also released infrared footage of the gravity waves spilling out from the deep convection currents in the storm.
The prevailing theory holds the trouble occurs around tropical storms in which strong convection currents move moist air from low altitudes to high altitudes where the local temperatures are very cold, creating high concentrations of ice crystals.
It is my best guess that this venting system was a way to actively force the convection currents in the rooms to allow them to be more comfortable.