摘要
提出弱区域指示函数描述流场形状并证明了其存在和不唯一性;利用该函数基于Delaunay方法依据流场尺度生成二维非结构网格。其中,边界引力有效解决了流场边界恢复和内嵌边界问题,弹簧振子和正三角形趋进技术有效改善网格质量。最后,弹簧振子随着弱区域指示函数的演变与监测函数的指导成功应用到自适应网格生成。
The paper presents the idea of weak domain tence and non-exclusiveness for it, then it generates the indicating function which describes the field and proves the exisunstructured mesh of two space dimension domain according to scale function.By boundary attraction the mesh boundary approached the domain boundary and inner-domain boundary, the spring and equilateral triangle approach method optimizes the mesh structure effectually.Finally, spring realizes adaptive mesh by the evolvement of weak domain indicating function and the instruct of the monitor function.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第26期227-232,共6页
Computer Engineering and Applications
基金
国家自然科学基金No.10571178~~
关键词
非结构网格
弱区域指示函数
自适应网格
弹簧振子
边界引力
unstructured mesh
weak domain indicating function
adaptive mesh
spring optimization
boundary attraction
