Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9837560 | Physica B: Condensed Matter | 2005 | 9 Pages |
Abstract
A non-Fourier conduction model with heat source term is presented to study the target temperature evolvement when the target is radiated by high power (the laser intensity is above 109Â w/cm2) and ultra short (the pulse width is less than 150Â ps) pulsed laser. By Laplace transform, the analytical expression of the space- and time-dependence of temperature is derived. Then as an example of aluminum target, the target temperature evolvement is simulated. Compared with the results of Fourier conduction model and non-Fourier model without heat source term, it is found that the effect of non-Fourier conduction is notable and the heat source plays an important role during non-Fourier conduction which makes surface temperature ascending quickly with time. Meanwhile, the corresponding physical mechanism is analyzed theoretically.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Duanming Zhang, Li Li, Zhihua Li, Li Guan, Xinyu Tan,