强激光与粒子束2011，Vol.23Issue(7)：1813-1817,5.DOI:10.3788/HPLPB20112307.1813
复杂通道内激光传输的气体热效应
Thermal blooming in complicated pipe flow
摘要
Abstract
Based on the computational fluid dynamics(CFD) software, an emluator for the optics and fluency coupling effects is established by means of the user defined function(UDF). Thermal blooming effects in a special tube with axial pipe flow are modeled. The simulated results indicate that the velocity distribution of the pipe flow is very asymmetric. However, the fluid den-sity distribution is almost not changed without laser beam heating. As laser beam couples with the fluency, the fluid density distri-bution varies greatly. The heterogeneous fluid density distribution induces the optical path distinction of the double pearl eye form. This phenomenon is also observed in the previous experiments.关键词
自定义函数/气体热效应/内通道/数值仿真Key words
user defined function/thermal blooming/beam path indoor/numerical simulation/分类
信息技术与安全科学引用本文复制引用
孙运强,习锋杰,许晓军,陆启生,刘顺发,王继红,金钢,陈洪斌..复杂通道内激光传输的气体热效应[J].强激光与粒子束,2011,23(7):1813-1817,5.基金项目
国防科技基础研究基金项目 （）
