Convection and Radiation in Heat Transfer

Convection and radiation are two major ways heat moves. In convection, thermal energy is carried by the large-scale flow of matter. Warm air and water rise because they are less dense, so ocean currents and large-scale atmospheric circulation move heat from the tropics toward the poles and move cold air from the poles toward...

Convection is the process in which heat transfer occurs due to the motion of fluid from one area to another.

It can be classified into two categories, free convection and forced convection.

In free convection, heat transfer takes place by the flow of fluid due to the difference in densities caused by a temperature gradient.

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