Am 27.08.2011 17:29, schrieb Joe Catania:
Convection is irrelevant. Its obvious that heat transfer is only to a
small portion of the water.
The thermal conductivity of water is about 500 times worse than the
thermal conductivity of copper.
http://en.wikipedia.org/wiki/List_of_thermal_conductivities
Nevertheless we can use water to cool copper surfaces.
As soon as we have a high temperature gradient in water, we will get
convection that destroys the temperature gradient.
So convection is not irrelevant. It is the most dominating factor.
