三维模块化特征线方法

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基金项目:

国家自然科学基金资助(10976021,10875094)

国家磁约束核聚变能研究专项资助(2009GB109011)

Three-Dimensional Modular Characteristics Method

School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China

摘要: 提出了一种新的模块化特征线方法。该方法将求解几何剖分为许多长方体栅元,从中选出所有的典型栅元,仅存储典型栅元的特征线信息,从而大量减少特征线信息。为了解决现有求积组公式不适用于新特征线的产生方法,提出了新的求积组权重公式。应用该方法对三维栅元和小型轻水反应堆进行数值计算,结果显示,该模块化特征线方法结果可靠并且可以显著地减少特征线信息。
- 三维特征线方法 /
- 模块化 /
- 求积组
Abstract: A new three-dimensional modular characteristics method is proposed in this paper.With this method,the problem geometry is cut into many cuboid cells,from which all the typical cells are selected,and only the characteristic lines of the typical cells are saved to significantly reduce the memory requirement.Corresponding to this technique,new angular quadrature sets are derived.Numerical results demonstrate that this new technique is accurate and efficient to reduce the requirement of memory.
- 3D MOC /
- Modular /
- Angular quadrature sets