| 用于复杂环境下中子时空动力学计算的简化球谐函数方法 |
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| 引用本文： | 曹良志,吴宏春,姚栋.用于复杂环境下中子时空动力学计算的简化球谐函数方法[J].核动力工程,2007,28(1):18-21. |
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| 作者姓名： | 曹良志 吴宏春 姚栋 |
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| 作者单位： | 1. 西安交通大学,710049
2. 中国核动力研究设计院,成都,610041 |
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| 摘 要： | 将简化球谐函数(SPN)方法用于离散输运时空动力学方程的角度变量,应用有限元方法离散其空间变量,用全隐式向后差分离散时间变量,用时间积分法求解缓发中子先驱核浓度方程,建立了复杂环境下输运时空动力学计算的理论模型.根据该模型编制了非结构网格多维输运时空动力学计算程序,数值计算结果表明,该方法可以应用于复杂环境下中子输运时空动力学计算.
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| 关 键 词： | 简化球谐函数 时空动力学 非结构网格 |
| 文章编号： | 0258-0926（2007）01-0018-04 |
| 修稿时间： | 2005-09-222006-02-21 |
Simplified Spherical Harmonics Method for Neutron Time-Space Kinetics Calculation in Complex Environment |
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| CAO Liang-zhi,WU Hong-chun,YAO Dong.Simplified Spherical Harmonics Method for Neutron Time-Space Kinetics Calculation in Complex Environment[J].Nuclear Power Engineering,2007,28(1):18-21. |
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| Authors: | CAO Liang-zhi WU Hong-chun YAO Dong |
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| Abstract: | The simplified spherical harmonics(SPN) method is utilized to discretize the angular variables of neutron transport time-space kinetics equation.The finite element method,fully implicit scheme and direct analytical time integration method are used to deal with the spatial,time variables and delayed neutron pre-cursor equation,respectively.According to the model,a computer program is developed to solve multi-dimensional time-space kinetics equation in unstructured-meshes.The numerical results show that this method can be used to perform the kinetics calculation in complex environment. |
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| Keywords: | Simplified spherical harmonics Time-space kinetics Unstructured-meshes |
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