特征线几何预处理方法比较

发布时间：2018-04-18 14:53

本文选题：特征线方法 + 几何预处理　；参考：《核技术》2017年04期

【摘要】：网格划分、特征线间距、角度求积组、极角数目和方位角大小等几何预处理过程对特征线法的计算精度和计算效率有较大影响。基于步特征线法开发输运程序,通过数值计算验证所开发程序的正确性并分析两种特征线扫描方法(首尾相间循环扫描法、首尾相接循环扫描法)以及网格划分、特征线间距、角度求积组、极角数目、方位角大小对计算精度的影响。结果表明,开发的程序准确可靠;首尾相间循环扫描方法的收敛速度比首尾相接循环扫描方法慢。
[Abstract]:Mesh, feature line spacing, angle quadrature group, polar angle and azimuth angle and geometric size of the number of pretreatment process on characteristic line method, the calculation accuracy and the calculation efficiency has great influence. Step method of characteristic development transport program based on verified by numerical calculation program are correct and analysis of two kinds of characteristic line scanning method (both with circular scanning method, and connected with circular scanning method) and mesh, feature line spacing, angle quadrature sets, polar angle number, size effect of azimuth angle on the calculation accuracy. The results show that the program is accurate and reliable; the convergence speed and circular scanning method than both end-to-end cycle slow scanning method.

【作者单位】：南华大学核科学技术学院;
【基金】：国家自然科学基金(No.11305088) 湖南省教育厅科学研究项目(No.16C1365)资助~~
【分类号】：TL329

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