convection, natural

convection, natural
Circulation of a gas or liquid due to difference in density resulting from temperature differences.

Dictionary of automotive terms. 2015.

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  • Convection — This figure shows a calculation for thermal convection in the Earth s mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less dense lower boundary layer sends plumes of hot material upwards, and likewise,… …   Wikipedia

  • Convection–diffusion equation — The convection–diffusion equation is a parabolic partial differential equation combining the diffusion equation and the advection equation, which describes physical phenomena where particles or energy (or other physical quantities) are… …   Wikipedia

  • Natural convection — Bénard cells. Natural convection is a mechanism, or type of heat transport, in which the fluid motion is not generated by any external source (like a pump, fan, suction device, etc.) but only by density differences in the fluid occurring due to… …   Wikipedia

  • Convection oven — Although the word convection is usually used to describe the natural circulation of gas or liquid caused by temperature differences, the convection in convection oven has a more general definition: the transfer of heat via movement of gas or… …   Wikipedia

  • Natural environment — This article is about the environment. For other uses, see Environment (disambiguation). See also: Nature Land management policies have been developed to preserve the natural characteristics of Hopetoun Falls, Australia while allowing ample… …   Wikipedia

  • convection — convectional, adj. /keuhn vek sheuhn/, n. 1. Physics. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. 2. Meteorol. the vertical transport of atmospheric properties, esp. upward (distinguished from… …   Universalium

  • natural convection — natūralioji konvekcija statusas T sritis Energetika apibrėžtis Tai takiosios medžiagos judėjimas, kurio priežastis yra terpės nevienalytiškumas (temperatūros, tankio, koncentracijos ir pan. gradientai). atitikmenys: angl. natural convection vok.… …   Aiškinamasis šiluminės ir branduolinės technikos terminų žodynas

  • natural convection — natūralioji konvekcija statusas T sritis fizika atitikmenys: angl. natural convection vok. natürliche Konvektion, f rus. естественная конвекция, f pranc. convection naturelle, f …   Fizikos terminų žodynas

  • Convection heater — A convection heater is a heater which operates by air convection currents circulating through the body of the appliance, and across its heating element. This heats up the air, causing it to increase in volume and so become buoyant and rise. Oil… …   Wikipedia

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