| Numerical Simulation of the Non-Fourier Heat Conduction in a Solid-State Laser Medium |
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| 引用本文： | 陶毓伽 淮秀兰 李志刚. Numerical Simulation of the Non-Fourier Heat Conduction in a Solid-State Laser Medium[J]. 中国物理快报, 2006, 23(9): 2487-2490 |
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| 作者姓名： | 陶毓伽 淮秀兰 李志刚 |
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| 作者单位： | [1]Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080 [2]Graduate School of Chinese Academy of Sciences, Beijing 100080 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 50376063, and the Institute of Engineering Thermophysics, Chinese Academy of Sciences. |
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| 摘 要： |
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| 关 键 词： | 数字模拟 非傅立叶加热传导 固态激光介质 脉冲 |
| 收稿时间： | 2006-04-28 |
| 修稿时间： | 2006-04-28 |
Numerical Simulation of the Non-Fourier Heat Conduction in a Solid-State Laser Medium |
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| TAO Yu-Jia, HUAI Xiu-Lan , LI Zhi-Gang. Numerical Simulation of the Non-Fourier Heat Conduction in a Solid-State Laser Medium[J]. Chinese Physics Letters, 2006, 23(9): 2487-2490 |
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| Authors: | TAO Yu-Jia HUAI Xiu-Lan LI Zhi-Gang |
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| Affiliation: | 1.Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080 ;2.Graduate School of Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | A hyperbolic model of non-Fourier heat conduction with non-uniform heat source is used to simulate the transient heat transfer in a high-pulse-pumped solid-state laser medium. The temperature fields are numerically analysed using the finite difference method combined with the TDMA algorithm for different pump power densities, pulse durations, thermal relaxation time and cooling intensities, respectively. The calculated results are compared with those predicted by the parabolic heat conduction model based on the Fourier law. The results indicate that the non-Fourier heat conduction phenomenon in laser media should be considered when the pump power density exceeds 104 W/m^2 or under low pulse duration. In addition, the conditions of non-Fourier effects and their influencing factors are analysed. |
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