Shift of the laser ablation center on CFRP induced by the vortex in the boundary layer of tangential airflow
Shift of the laser ablation center on CFRP induced by the vortex in the boundary layer of tangential airflow
复制标题
切向气流边界层涡流引起CFRP激光烧蚀中心的移动
DOI：
10.1007/s00170-019-04797-6
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发表时间：
2020-01
期刊：
影响因子：
--
通讯作者：
Xiaowu Ni
中科院分区：
文献类型：
--
作者：
Pengyu Nan;Xiao Li;Yunxiang Pan;Yang Zhong;Bing Han;Zhonghua Shen;Xiaowu Ni
模拟了切向气流作用下连续波(CW)激光对碳纤维增强复合材料(CFRP)的氧化烧蚀。对边界层内气流流动和氧气扩散进行了数值模拟。数值模拟结果表明，随着烧蚀时间的延长，烧蚀坑中心偏离激光光斑中心，光斑中心从上游向下游移动。激光烧蚀实验验证了上述结果。当烧蚀坑足够深时，气流中出现涡流。由于烧蚀坑内的再循环，它显著地改变了氧气的传质。在此模型的基础上，研究了气流速度、激光功率密度和激光光斑半径对漂移的影响。研究结果对激光加工和激光损伤的应用具有一定的参考价值。
The oxidation ablation of carbon fiber-reinforced polymer (CFRP) induced by a continuous wave (CW) laser under tangential airflow was modeled in this study. The fluid of the airflow and the diffusion of the oxygen in the boundary layer were simulated. The numerical predictions indicated that the center of the ablation pit deviated from the center of laser spot, which moved to the downstream area from the upstream area as the ablation time increased. These results were proven by the laser ablation experiments. The vortex appeared in the airflow when the ablation pit was deep enough. It significantly modified the mass transport of oxygen due to the recirculation in the ablation pit. Based on this model, the impacts of the airflow velocity, the laser power density, and the laser spot radius on the shift were investigated. The results of this work can be referenced for the applications of laser processing and laser damage.
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影响因子：
3.2
作者：
T. Kononenko;C. Freitag;M. Komlenok;V. Onuseit;R. Weber;T. Graf;V. Konov
通讯作者：
T. Kononenko;C. Freitag;M. Komlenok;V. Onuseit;R. Weber;T. Graf;V. Konov
影响因子：
5.2
作者：
B. Farhanieh;C. Herman;B. Sundén
通讯作者：
B. Farhanieh;C. Herman;B. Sundén
DOI：
10.4028/www.scientific.net/amm.66-68.715
发表时间：
2011-07
期刊：
Applied Mechanics and Materials
影响因子：
--
作者：
Jin Zhang;L. Long
通讯作者：
Jin Zhang;L. Long
DOI：
10.1243/09544054jem1662
发表时间：
2010-01
期刊：
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
影响因子：
--
作者：
R. Negarestani;M. Sundar;M. Sheikh;P. Mativenga;L. Li;Z. L. Li;P. L. Chu;C. C. Khin-C.;H. Zheng;G. Lim
通讯作者：
R. Negarestani;M. Sundar;M. Sheikh;P. Mativenga;L. Li;Z. L. Li;P. L. Chu;C. C. Khin-C.;H. Zheng;G. Lim
影响因子：
6.7
作者：
Ohkubo, Tomomasa;Sato, Yuji;Tsukamoto, Masahiro
通讯作者：
Tsukamoto, Masahiro