Newton's Law of Cooling suggests that the hotter an object is, the more thermal energy it loses through convection. The following model demonstrates this. Notice the linear dependence of transferred heat on the temperature of the heater: If the temperature is twice as high, the convected heat will be approximately twice as much.

Graph Grid Velocity vectors Isotherm Heat flux Streamlines

Temperature of the right heater

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Developed by Charles Xie. © 2010- The Concord Consortium.