convection heat
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Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change … Wikipedia
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
Heat transfer coefficient — The heat transfer coefficient, in thermodynamics and in mechanical and chemical engineering, is used in calculating the heat transfer, typically by convection or phase change between a fluid and a solid::Delta Q=h cdot A cdot Delta T cdot Delta… … Wikipedia
Heat sink — A heat sink (or heatsink) is an environment or object that absorbs and dissipates heat from another object using thermal contact (either direct or radiant). Heat sinks are used in a wide range of applications wherever efficient heat dissipation… … 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
Heat conduction — or thermal conduction is the spontaneous transfer of thermal energy through matter, from a region of higher temperature to a region of lower temperature, and acts to equalize temperature differences. It is also described as heat energy… … Wikipedia
Convection — Con*vec tion, n. [L. convectio, fr. convehere to bring together; con + vehere to carry.] 1. The act or process of conveying or transmitting. [1913 Webster] 2. (Physics) A process of transfer or transmission, as of heat or electricity, by means of … The Collaborative International Dictionary of English
convection — [kən vek′shən] n. [L convectio < pp. of convehere, to bring together < com , together + vehere, to carry, bear] 1. a transmitting or conveying 2. a) the mass movement of parts of a fluid within the fluid because of differences in the… … English World dictionary
heat transfer — heat transfer, the flow of heat from warmer bodies to colder bodies; the transfer of heat between solids, liquids, or gases, by conduction, convection, or radiation … Useful english dictionary
convection — ► NOUN ▪ transference of mass or heat within a fluid caused by the tendency of warmer and less dense material to rise. DERIVATIVES convect verb convectional adjective convective adjective. ORIGIN Latin, from convehere, from vehere carry … English terms dictionary
Heat — In physics, heat, symbolized by Q , is energy transferred from one body or system to another due to a difference in temperature. [cite book|author= Daintith, John |title=Oxford Dictionary of Physics|publisher=Oxford University… … Wikipedia
