| 离心级联供料扰动过程中丰度分布的数值模拟 |
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| 引用本文： | 李锦,曾实. 离心级联供料扰动过程中丰度分布的数值模拟[J]. 清华大学学报(自然科学版), 2009, 0(5): 639-642 |
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| 作者姓名： | 李锦 曾实 |
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| 作者单位： | 清华大学,工程物理系,北京,100084;清华大学,工程物理系,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目(10875069) |
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| 摘 要： | 为了得到离心级联流体状态变化时同位素丰度分布情况,建立了丰度变化下的动态数学模型,与水力学数值模拟进行耦合,利用Q迭代算法求解了动态丰度方程。Xe分离数值模拟结果表明,该模型和算法可以有效求解离心级联动态丰度分布。在扰动幅度和持续时间都相同的情况下,丰度的变化与该组分在同位素中的位置、距离扰动级的位置、机器滞留量以及稳态下丰度的分布情况都密切相关。研究结果可供实际同位素生产中参数分析和调整时参考。
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| 关 键 词： | 离心级联 同位素 动态过程 丰度分布 |
Numerical simulations of concentration distribution during feed disturbances in a centrifuge cascade |
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| LI Jin,ZENG Shi. Numerical simulations of concentration distribution during feed disturbances in a centrifuge cascade[J]. Journal of Tsinghua University(Science and Technology), 2009, 0(5): 639-642 |
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| Authors: | LI Jin ZENG Shi |
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| Affiliation: | Department of Engineering Physics;Tsinghua University;Beijing 100084;China |
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| Abstract: | A dynamic mathematical model was developed to predict the concentration variations in a hydraulics simulation of an unsteady centrifuge cascade.The Q-iteration method was used to solve the concentration equations.Xe separation simulations show that the algorithm is effective for determining the unsteady concentration distributions in a centrifuge cascade.For the same level of disturbance,the concentration changes are related to the isotope mixture,the disturbance,the centrifuge holdup and the concentration ... |
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| Keywords: | centrifuge cascade isotope dynamic process concentration distribution |
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