Language :
SWEWE Member :Login |Registration
Encyclopedia community |Encyclopedia Answers |Submit question |Vocabulary Knowledge |Upload knowledge
questions :Fourier law
Visitor (139.167.*.*)
Category :[Science][Other]
I have to answer [Visitor (3.239.*.*) | Login ]

Picture :
Type :[|jpg|gif|jpeg|png|] Byte :[<1000KB]
Language :
| Check code :
All answers [ 1 ]
[Member (365WT)]answers [Chinese ]Time :2019-09-02
In the heat conduction phenomenon, the heat passing through a given section per unit time is proportional to the rate of temperature change and the cross-sectional area perpendicular to the interface direction, and the direction of heat transfer is opposite to the direction in which the temperature rises.

Thermal conduction in a solid is an atomic activity (phonon) derived from the form of lattice vibration. The modern view attributed this energy transfer to the lattice waves caused by atomic motion. In non-conductors, energy transfer depends only on lattice waves; in conductors (such as silver and iron), in addition to lattice waves, there is also the relaxation motion of free electrons.


版权申明 | 隐私权政策 | Copyright @2018 World encyclopedic knowledge