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| 氢气在多层球壳中扩散过程的模拟计算 | |
| 引用本文： | 张丽卿, 李波, 张占文, 等. 氢气在多层球壳中扩散过程的模拟计算[J]. 强激光与粒子束, 2005, 17(06). |
| 作者姓名： | 张丽卿 李波 张占文 蒋刚 |
| 作者单位： | 1.四川大学 原子与分子物理研究所, 四川 成都 61 0065;;;2.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621 900 |
| 摘 要： | 从Fick第二定律出发，推导了氢气在多层球壳中，扩散过程的浓度分布表达式，即氢气浓度与扩散时间和扩散距离的关系。每层中，在一定的扩散时间内，一定量的氢气的扩散浓度与扩散深度之间近似为抛物线关系，说明渗透物沿着聚合物链段膨胀的方向进行扩散。在同一位置，一定量氢气的浓度，随着时间的延长而增加，说明渗透物使聚合物链段发生膨胀，自由体积增大，扩散路径增多，扩散系数随着浓度的增加而增大。 |
| 关 键 词： | 扩散 浓度分布 传质 ICF靶 |
Simulated calculation for diffusion process of gas in multilayer shells |
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| zhang li-qing, li bo, zhang zhan-wen, et al. Simulated calculation for diffusion process of gas in multilayer shells[J]. High Power Laser and Particle Beams, 2005, 17. | |
| Authors: | zhang li-qing li bo zhang zhan-wen jiang gang |
| Affiliation: | 1. Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065,China;;;2. Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China |
| Abstract: | Concentration distribution expression of hydrogen diffusion process in multilayer polymer shells, that is the relationship among hydrogen concentration diffusion, time and diffusion distance was derived based on the second Fick's law. In each layer, in a certain diffusion time, the relationship between hydrogen concentration and diffusion depth is parabolic for a certain quality gas, which indicates in the direction of penetrant diffusion the polymer systems are swelled and the penetrant diffuses along the direction of polymer swelling. In different diffusion time, the concentration of ration hydrogen was increased with time delay at the same place. Because polymer free volumn was largened owing to polymer systems being swelled, and the hydrogen's diffusion path was increassed and the diff |
| Keywords: | diffusion concentration distribution mass transfer icf target |
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