激光辐照盐溶液中铝靶材的温度场研究

Study on the Temperature Field of Aluminum Target Material Irradiated by Laser in Salt Solution

基于Comsol multiphysics软件,对连续激光辐照盐溶液中铝靶材的温度场进行了数值仿真模拟,得到了不同的激光功率和不同的盐浓度对连续激光辐照盐溶液中铝靶材的温度时间响应。研究结果表明,随着激光功率的增大,激光辐照中心点、径向温度、轴向温度三者的变化曲线都呈现明显的上升趋势。而盐溶液浓度增大,激光辐照中心点、径向温度、轴向温度三者的变化幅度都很小。但二者的径向温度和轴向温度都是分别随着径向距离、轴向距离的增大而呈现相同的下降趋势,随空间分布都呈高斯分布,与所用激光的空间分布类似。研究结果对激光的水下加工和激光的水下传输具有重要意义。

Based on Comsol multiphysics, the numerical simulation of the temperature field of aluminum target in salt solution irradiated by continuous laser was carried out. The influence of different laser power and different salt concentration on the temperature time of aluminum target in salt solution irradiated by continuous laser was obtained. The results show that with the increase of laser power, the change curves of laser irradiation center point, radial temperature and axial temperature all show an obvious rising trend. However, with the increase of salt solution concentra-tion, the laser irradiation center, radial temperature and axial temperature have a small range of change. However, with the increase of radial distance and axial distance, the radial temperature and axial temperature show the same downward trend respectively, and the spatial distribution is Gaussian, which is similar to the spatial distribution of the laser used. The results are of great sig-nificance for underwater laser processing and underwater laser transmission.