哈尔滨工程大学学报2011，Vol.32Issue(7)：841-847,7.DOI:10.3969/j.issn.1006-7043.2011.07.001
二阶核近似SPH精度分析及其在粘性流场中的应用
Accuracy analysis of SPH with secomd order kernel approximation and its application to viscosity flow simulation
摘要
Abstract
SPH is a Lagrangian mesh-free particle method. According to the low accuracy characteristics of kernel approximation for traditional SPH, a second order kernel approximation SPH ( K2_SPH) was introduced. After the comparison of traditional SPH and the moving least square method, the accuracy characteristics of K2_SPH were obtained. Then K2_SPH was applied to simulate the flat plate flow, which is one of typical benchmarks for the meshless particle method. With the improvement of kernel approximation, the results of K2_SPH show higher accuracy and more stability compared with traditional SPH.关键词
无网格方法/SPH/K2_SPH/精度分析Key words
meshless method/SPH/K2_SPH/accuracy analysis分类
数理科学引用本文复制引用
郑兴,段文洋..二阶核近似SPH精度分析及其在粘性流场中的应用[J].哈尔滨工程大学学报,2011,32(7):841-847,7.基金项目
国家自然科学基金资助项目(51009034):中央高校基本科研业务费专项基金资助项目(HEUCF100102) （51009034）
“111计划”基金资助项目(B07019). （B07019）
