In heat flow {convection, heat}|, mass can move in another mass, as hotter fluid at lower density rises and cooler fluid at higher density falls or as masses mix, flow, or blow. Convection is non-random motion that transfers heat by mass movement. Convective-heat flow rate increases as temperature difference increases. Blowing on something to cool it uses convection. Radiators use convection.
Physical Sciences>Physics>Heat>Transfer
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Date Modified: 2022.0224