generalized fourier law
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2018 ◽  
Vol 382 (42-43) ◽  
pp. 3115-3119 ◽  
Author(s):  
Qing-Lian Xu ◽  
Zhen-Gang Zhu ◽  
Gang Su

2018 ◽  
Vol 240 ◽  
pp. 05018 ◽  
Author(s):  
Ewa Majchrzak ◽  
Bohdan Mochnacki

In the paper the different variants of the dual phase lag equation (DPLE) are considered. As one knows, the mathematical form of DPLE results from the generalization of the Fourier law in which two delay times are introduced, namely the relaxation time τq and the thermalization one τT. Depending on the order of development of the left and right hand sides of the generalized Fourier law into the Taylor series one can obtain the different forms of the DPLE. It is also possible to consider the others forms of equation discussed resulting from the introduction of the new variable or variables (substitution). In the paper a thin metal film subjected to a laser pulse is considered (the 1D problem). Theoretical considerations are illustrated by the examples of numerical computations. The discussion of the results obtained is also presented.


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