convection


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convection
Air heated by a space heater rises and is replaced by cool air, creating a convection current that circulates hot air throughout a room.

con·vec·tion

 (kən-vĕk′shən)
n.
1. The act or process of conveying; transmission.
2. Physics
a. Heat transfer in a gas or liquid by the circulation of currents from one region to another.
b. Fluid motion caused by an external force such as gravity.
3. Meteorology The transfer of heat or other atmospheric properties by massive motion within the atmosphere, especially by such motion directed upward.

[Late Latin convectiō, convectiōn-, from convectus, past participle of convehere, to carry together : Latin com-, com- + Latin vehere, to carry; see wegh- in Indo-European roots.]

con·vec′tion·al adj.
con·vec′tive adj.
con·vec′tive·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

convection

(kənˈvɛkʃən)
n
1. (General Physics) a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region. Compare conduction1
2. (Physical Geography) meteorol the process by which masses of relatively warm air are raised into the atmosphere, often cooling and forming clouds, with compensatory downward movements of cooler air
3. (Geological Science) geology the slow circulation of subcrustal material, thought to be the mechanism by which tectonic plates are moved
[C19: from Late Latin convectiō a bringing together, from Latin convehere to bring together, gather, from vehere to bear, carry]
conˈvectional adj
conˈvective adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

con•vec•tion

(kənˈvɛk ʃən)

n.
1. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
2. the vertical transport of atmospheric properties, esp. upward (disting. from advection).
3. the act of conveying or transmitting.
[1615–25; < Late Latin]
con•vec′tion•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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convection
Air heated by a space heater rises, then cools and falls to be heated and rise again. This cycle creates a convection current that circulates hot air throughout a room.

con·vec·tion

(kən-vĕk′shən)
The transfer of heat energy through liquids and gases by the movement of molecules. When molecules of the liquid or gas come in contact with a source of heat, they move apart and away from the source of heat, and cooler molecules take their place. Eventually, as the cooler molecules are heated, they move as well, and a convection current forms, transferring the heat. See Note at conduction.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

convection

the vertical movement of elements of the atmosphere. Cf. advection.
See also: Atmosphere
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.

convection

1. The upward motion of a body of air which transfers heat from ground level to the upper part of the atmosphere.
2. Heat transfer by means of currents circulating through fluids.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.convection - the transfer of heat through a fluid (liquid or gas) caused by molecular motionconvection - the transfer of heat through a fluid (liquid or gas) caused by molecular motion
temperature change - a process whereby the degree of hotness of a body (or medium) changes
2.convection - (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere
meteorology - the earth science dealing with phenomena of the atmosphere (especially weather)
natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
إنْتِقال الحَرارة بِالحَمْل، نَقل حَراري
prouděnívedení
konvektionvarmestrømning
hõáramlás
varmaburîur
konvekcija
konvekcija
prúdenie
iletimkonveksiyon

convection

[kənˈvekʃən] Nconvección f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

convection

[kənˈvɛkʃən]
nconvection f
modif [current, cell] → de convection convection ovenconvection oven nfour m à convection
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

convection

nKonvektion f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

convection

[kənˈvɛkʃn] nconvezione f
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

convection

(kənˈvekʃən) noun
the passing of heat through liquids or gases by means of currents.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
Of particular concern is the parameterization of convection and specifically convection in the tropics, which impacts global weather at all time scales through atmospheric teleconnections.
The IFB 30SC4 30-litre convection microwave oven is a delight for those who love to cook something different every day.
By reviewing literature, it reveals that it has not been studied enough especially in mixed convection heat transfer.
When free convection flows occurs at high temperature, the effects of radiation are vital important.
When it begins to melt and the liquid PCM starts to move, the transfer of heat is due to convection.
DuraCrete [21] proposed an experience method which considers that within 0 ~ [increment of x] ([increment of x] is the total convection depth) the chloride ion convection is mainly caused by pore fluid flow while that outside this region is mainly caused by concentration diffusion.
This motion is called thermocapillary flow or Marangoni convection. On the other hand, the buoyancy force due to gravity force can be also causes fluid motion.
The results for velocity and temperature distribution reveal the flow kinematics under the effects of key physical parameters of the problem namely non linear shrinking parameter s, magnetic parameter M, porosity parameter K, mixed convection parameter and Prandtl number Pr .
The study of natural convection in triangular enclosures has recently attracted the attention of researchers because of its applications to, for example, attic spaces of buildings (Megri and Yu 2014) and electronic equipment.