摘要
Level set作为一种有效的界面追踪方法,已经被广泛地应用到单相流的自由表面追踪或多相流的交界面追踪.快速粒子level set方法(FPLS)是一种改进的level set方法,既具有较高的界面追踪精度,又有较高的计算效率.将其与自适应网格结合起来,提出了一种基于树型结构空间自适应的快速粒子level set方法(SA-FPLS).通过在交界面附近设置高分辨率网格带,且只在高分辨率网格带内求解level set方程,既进一步提高了交界面模拟精度,又可以节省计算机内存,同时保持较高计算效率.
As an effective method of interface tracking,the level set method has been widely applied to surface tracking of single phase flow and interface tracking of multi-phase flow.The fast particle level set（FPLS）method,as an improved version of the level set method,not only is of relatively high accuracy in surface tracking,but also possesses high efficiency of calculation.By combination of the FPLS with tree-based adaptive gridding system,a spatially adaptive fast particle level set（SA-FPLS）approach is proposed,By solving the level-set equation with higher gridding resolution in a narrow mesh band around the interface,the solution accuracy can be further improved with less computer memory consumption and higher computational efficiency.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2010年第11期981-987,共7页
Journal of Tianjin University(Science and Technology)
