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激光诱导等离子体的气体动力学和燃烧波扩展速度研究

蔡继兴 郭明 渠旭 李贺 金光勇

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激光诱导等离子体的气体动力学和燃烧波扩展速度研究

蔡继兴, 郭明, 渠旭, 李贺, 金光勇

Gas dynamics and combustion wave expanding velocity of laser induced plasma

Cai Ji-Xing, Guo Ming, Qu Xu, Li He, Jin Guang-Yong
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  • 针对激光对熔石英材料产生致燃损伤过程中存在的激光支持燃烧波,考虑激光作用的温度残余、目标形貌的改变、喷溅物质分布、目标表面气流状况的分布等效应,分阶段对激光支持燃烧波的过程进行建模和仿真研究.通过建立二维轴对称气体动力学模型,模拟研究包含逆韧致辐射、热辐射、热传导和对流过程在内的激光能量传输过程.此外,依据激光支持燃烧波在可见光波段具有明显的辐射特征这一特点,利用阴影法测量了激光对熔石英致燃损伤过程中的燃烧波扩展速度,得到了燃烧波演化过程图像.研究结果表明:在平行激光束作用下,燃烧波的传播是稳态的,气体动力学行为比较稳定;在聚焦激光束作用下,燃烧波的传播是非稳态的.模拟结果中得到的激光支持燃烧波扩展速度及气体动力学结构与实验结果和理论推导结果符合得很好,验证了理论模型的正确性.
    Fused silica is an indispensable basic element in a laser system and the weakest link in all components. When the laser interacts with fused silica, the target absorbs the laser energy so that its own temperature rises, and then it melts and vaporizes. The vaporization of the target gasification further absorbs the laser energy and produces a low density ionization reaction, resulting in the laser supported combustion wave (LSCW) phenomenon. In this paper, taking into account the effects of temperature residual, change in target morphology, distribution of splash material, and distribution of target surface airflow condition, we model and simulate the process of LSCW in stages. The laser energy transfer process, including the inverse bremsstrahlung radiation, thermal radiation, heat conduction and convection processes, is simulated by establishing a two-dimensional axisymmetric gas dynamic model. In addition, the LSCW in the visible light band has a strong radiation characteristic, which is significantly different from the laser induced target melting and vaporization phenomenon. The LSCW is easily received and displayed by high-speed camera. Therefore, a shadow system is established to measure the expanding velocity of the combustion wave in the process of fused silica damaged by laser, and the evolution process image of the combustion wave is obtained. The results show that under the action of parallel laser beam, the propagation of the combustion wave is in a steady-state and the gas dynamic behavior is stable. For the pulse widths of 1 ms and 3 ms, the average propagation velocity of the LSCW is calculated to be about 24 m/s, which is consistent with the experimental result in the literature available. This verifies the correctness of our theoretical model. For the pulse width of 3 ms, the average velocity of the flow field near the wavefront is calculated to be about 200 m/s. The numerical relationship between the velocity of the flow field and the propagation velocity of the LSCW is also basically consistent with the theoretical derivation result. Under the action of focused laser beam, the propagation of the combustion wave is unsteady. For the pulse widths of 1 ms, the laser intensity at the front of the plasma decreases gradually and the beam radius becomes larger. For the pulse width of 1.8 ms, both a similar pattern of mushroom cloud in the combustion wave and turbulence are observed, which is basically consistent with the evolution process of the combustion wave appearing in our experiment. The simulation results are in good accordance with the experimental results, and also provide a theoretical and experimental basis for studying the LSCW of fused silica.
      通信作者: 金光勇, jgycust@163.com
    • 基金项目: 吉林省科学技术厅项目(批准号:20150622011JC)资助的课题.
      Corresponding author: Jin Guang-Yong, jgycust@163.com
    • Funds: Project supported by the Science and Technology Department of Jilin Province, China (Grant No. 20150622011JC).
    [1]

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    [2]

    Doualle T, Gallais L, Cormont P, Hbert D, Combis P, Rullier J L 2016 J. Appl. Phys. 119 113106

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    Kozlowski M R, Thomas I M, Campbell J H, Rainer F 1993 Proc. SPIE 1782 105

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    Pan Y J, Feng J 1996 Semicond. Photon. Technol. 2 199

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    Liu H J, Huang J, Wang F R, Zhou X D, Jiang X D, Wu W D 2010 Acta Phys. Sin. 59 1308 (in Chinese) [刘红婕, 黄进, 王凤蕊, 周信达, 蒋晓东, 吴卫东 2010 物理学报 59 1308]

    [6]

    Pan Y X, Zhang H C, Chen J, Han B, Shen Z H, Lu J, Ni X W 2015 Opt. Express 23 765

    [7]

    Sharma S P, Oliveira V, Rui V 2016 Appl. Phys. A 22 1

    [8]

    Qi L J, Zhu X, Zhu C H, Zhu G Z, Yang T 2008 Proc. SPIE 6825 68250A

    [9]

    Wang B, Qin Y, Ni X W, Shen Z H, Lu J 2010 Appl. Opt. 49 5537

    [10]

    Dai G, Lu J, Liu J, Qin Y, Ni X W 2011 J. Test Meas. Technol. 25 122 (in Chinese) [戴罡, 陆建, 刘剑, 秦渊, 倪晓武 2011 测试技术学报 25 122]

    [11]

    Yoshida K, Tochio N, Ohya M, Matsuoka T, Yagi K, Ochi K, Kaku S, Kamimura T, Kuzuu N 2000 Proc. SPIE 3902 169

    [12]

    Badziak J, Hora H, Woryna E, Jabłoński S, Laśka L, Parys P, Rohlena K, Wołowski J 2003 Phys. Lett. A 315 452

    [13]

    Alvisi M, Giulio M D, Marrone S G, Perrone M R, Protopapa M L, Valentini A, Vasanelli L 2000 Thin Solid Films 358 250

    [14]

    Dai G, Chen Y B, Lu J, Shen Z H, Ni X W 2009 Chin. Opt. Lett. 7 601

    [15]

    Xu Y, Zhang B, Fan W H, Wu D, Sun Y H 2003 Thin Solid Films 440 180

    [16]

    Milam D, Bradbury R A, Bass M 1973 Appl. Phys. Lett. 23 654

    [17]

    Capitelli M, Colonna G, Gorse C, D'Angola A 2000 Eur. Phys. J. D 11 279

    [18]

    Bogatyreva N, Bartlova M, Aubrecht V 2011 J. Phys.: Conf. Ser. 275 012009

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    Klosterman E L, Byron S R 1974 J. Appl. Phys. 45 4751

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    Guskov K G, Raizer Y P, Surzhikov S T 1990 Sov. J. Quantum Electron. 20 860

  • [1]

    Han W, Feng B, Zheng K X, Zhu Q H, Zheng W G, Gong M L 2016 Acta Phys. Sin. 65 246102 (in Chinese) [韩伟, 冯斌, 郑奎兴, 朱启华, 郑万国, 巩马理 2016 物理学报 65 246102]

    [2]

    Doualle T, Gallais L, Cormont P, Hbert D, Combis P, Rullier J L 2016 J. Appl. Phys. 119 113106

    [3]

    Kozlowski M R, Thomas I M, Campbell J H, Rainer F 1993 Proc. SPIE 1782 105

    [4]

    Pan Y J, Feng J 1996 Semicond. Photon. Technol. 2 199

    [5]

    Liu H J, Huang J, Wang F R, Zhou X D, Jiang X D, Wu W D 2010 Acta Phys. Sin. 59 1308 (in Chinese) [刘红婕, 黄进, 王凤蕊, 周信达, 蒋晓东, 吴卫东 2010 物理学报 59 1308]

    [6]

    Pan Y X, Zhang H C, Chen J, Han B, Shen Z H, Lu J, Ni X W 2015 Opt. Express 23 765

    [7]

    Sharma S P, Oliveira V, Rui V 2016 Appl. Phys. A 22 1

    [8]

    Qi L J, Zhu X, Zhu C H, Zhu G Z, Yang T 2008 Proc. SPIE 6825 68250A

    [9]

    Wang B, Qin Y, Ni X W, Shen Z H, Lu J 2010 Appl. Opt. 49 5537

    [10]

    Dai G, Lu J, Liu J, Qin Y, Ni X W 2011 J. Test Meas. Technol. 25 122 (in Chinese) [戴罡, 陆建, 刘剑, 秦渊, 倪晓武 2011 测试技术学报 25 122]

    [11]

    Yoshida K, Tochio N, Ohya M, Matsuoka T, Yagi K, Ochi K, Kaku S, Kamimura T, Kuzuu N 2000 Proc. SPIE 3902 169

    [12]

    Badziak J, Hora H, Woryna E, Jabłoński S, Laśka L, Parys P, Rohlena K, Wołowski J 2003 Phys. Lett. A 315 452

    [13]

    Alvisi M, Giulio M D, Marrone S G, Perrone M R, Protopapa M L, Valentini A, Vasanelli L 2000 Thin Solid Films 358 250

    [14]

    Dai G, Chen Y B, Lu J, Shen Z H, Ni X W 2009 Chin. Opt. Lett. 7 601

    [15]

    Xu Y, Zhang B, Fan W H, Wu D, Sun Y H 2003 Thin Solid Films 440 180

    [16]

    Milam D, Bradbury R A, Bass M 1973 Appl. Phys. Lett. 23 654

    [17]

    Capitelli M, Colonna G, Gorse C, D'Angola A 2000 Eur. Phys. J. D 11 279

    [18]

    Bogatyreva N, Bartlova M, Aubrecht V 2011 J. Phys.: Conf. Ser. 275 012009

    [19]

    Klosterman E L, Byron S R 1974 J. Appl. Phys. 45 4751

    [20]

    Guskov K G, Raizer Y P, Surzhikov S T 1990 Sov. J. Quantum Electron. 20 860

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出版历程
  • 收稿日期:  2016-12-22
  • 修回日期:  2017-01-06
  • 刊出日期:  2017-05-05

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