自然对流情形下激光辐照液体贮箱的尺度律  

Scaling law of natural convection in a liquid tank irradiated by laser

作　　者：焦路光[1] 赵国民[2] 王嘉睿[1] 杨在富[1] 

机构地区：[1]军事医学科学院放射与辐射医学研究所,北京100850 [2]国防科学技术大学光电科学与工程学院,长沙410073

出　　处：《强激光与粒子束》2015年第9期20-25,共6页High Power Laser and Particle Beams

摘　　要：根据质量守恒、动量守恒及能量守恒原理,建立了自然对流情形下激光辐照液体贮箱的理论模型。通过方程分析法,导出了该问题的尺度律,在此基础上给出了激光辐照液体贮箱的缩比方法,并对一组实例进行了数值计算,得到了缩比模型与原型结果完全相似的结论,模拟结果证明了该问题尺度律的成立。为验证理论模型与数值求解的正确性,本文还针对小尺度模型进行了实验研究,数值模拟结果与实验测量结果符合较好,表明理论模型可靠有效。Based on the mass,momentum,and energy conservation principle,a 3-D unsteady conjugate conduction-natural convection model was developed to simulate the laser irradiation effects on liquid tank.By means of equation analysis,the scaling law for this problem was obtained.According to the scaling law,a full-scale prototype and the corresponding reduced-scale model were established and analysed,respectively.It shows that similarity existed between the full-scale prototype and the reduced-scale model.Moreover,an experiment with the small scale model was performed to verify the numerical model.The measurement results are in good agreement with the ones obtained by the numerical simulation.

关 键 词：激光与物质相互作用 液体贮箱 自然对流 尺度律 

分 类 号：TN249[电子电信—物理电子学]