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CONVECCION LIBRE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2003-12-03

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Atmospheric Physics
DEF

The level at which a parcel of air lifted adiabatically would first become warmer than its surroundings.

Key term(s)
  • free convection level

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Physique de l'atmosphère
DEF

Niveau à partir duquel une particule d'air soulevée adiabatiquement devient plus chaude que l'air ambiant.

Spanish

Campo(s) temático(s)
  • Aerodinámica y teoría de los gases
  • Física de la atmósfera
DEF

Nivel en el que una partícula de aire elevada adiabáticamente está más caliente que el aire ambiente.

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Record 2 2003-10-09

English

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

Convection caused by density differences within the air.

CONT

Free convection is the rising of heated air and the sinking of cooler air without the need of external forces.

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 provoquée par des différences de densité de l'air.

CONT

[La] convection naturelle [...] est causée par le réchauffement diurne de la surface terrestre, résultant souvent en la formation de nuages Cumulus.

Spanish

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

Convección producida por diferencias de densidad dentro del aire.

Save record 2

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