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forced convection [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2003-11-06

English

Subject field(s)
  • Thermodynamics
  • Air Conditioning and Heating
  • Heating
DEF

Convection resulting from forced circulation of a fluid, as by a fan, jet, or pump.

French

Domaine(s)
  • Thermodynamique
  • Conditionnement de l'air et chauffage
  • Chauffage
CONT

On distingue la convection dite «naturelle» [...] et la convection «forcée» qu'on obtient en accélérant (ou en «forçant») la circulation du fluide par un moyen mécanique quelconque (ventilation, agitateur), ce qui améliore dans de très fortes proportions les échanges thermiques [...]

OBS

La convection, qui est un mouvement ascendant et descendant des molécules d'un fluide subissant un réchauffement, est l'un des trois phénomènes de la transmission de la chaleur entre deux corps (ou fluides) à températures différentes.

Spanish

Campo(s) temático(s)
  • Termodinámica
  • Acondicionamiento de aire y calefacción
  • Calefacción
DEF

Movimiento y mezcla de un fluido inducidos por una turbulencia artificial.

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Record 2 2003-10-21

English

Subject field(s)
  • Meteorology
  • Thermodynamics
  • Fluid Mechanics and Hydraulics (Physics)
DEF

Convection caused by mechanical forces, such as those arising from air motion over a rough or sloping surface.

CONT

Convection ... is a principal means of energy transfer. Distinction is made between free convection (gravitational or buoyant convection), motion caused only by density differences within the fluid; and forced convection, motion induced by mechanical forces such as deflection by a large-scale surface irregularity, turbulent flow caused by friction at the boundary of a fluid, or motion caused by any applied pressure gradient. Free and forced convection are not necessarily exclusive processes. On a windy day with overcast sky, the heat exchange between ground and air is an example of forced convection. On a sunny day with a little wind where the ground temperature rises, both kinds of convection take place.

French

Domaine(s)
  • Météorologie
  • Thermodynamique
  • Mécanique des fluides et hydraulique (Physique)
DEF

Convection d'une masse d'air causée par des forces mécaniques extérieures au système considéré.

Spanish

Campo(s) temático(s)
  • Meteorología
  • Termodinámica
  • Mecánica de fluidos e hidráulica (Física)
DEF

Convección producida por fuerzas mecánicas tales como las debidas al movimiento del aire sobre una superficie rugosa o una pendiente.

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