基于Narrow Band FLIP方法的流体模拟  

Fluid Simulation Based on Narrow Band FLIP Method

作　　者：邹长军[1] 尹勇[1] Zou Changjun;Yin Yong(Key Laboratory of Marine Simulation&Control Lab Dalian Maritime University Dalian,Dalian 116021)

机构地区：[1]大连海事大学航海仿真和控制重点实验室,大连116021

出　　处：《计算机辅助设计与图形学学报》2018年第4期577-583,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家"八六三"高技术研究发展计划(2015AA016404);船员培训模拟器性能标准研究(80716017);云南内河航运"船舶操纵模拟实训系统"(云交科2013(A)01)

摘　　要：为了改进fluid implicit particle(FLIP)方法中大量粒子对界面重构没有作用的问题,提出采用narrow-band FLIP(NBFLIP)方法与体积分数方法进行多相流模拟的方法,通过粒子重采样减少内部粒子数量,以提升整体计算效率;体积分数采用总变差不增的高精度数值格式进行追踪.与相关文献实验对比表明,文中方法可以实现丰富的单相流和多相流模拟效果.In order to improve the problems that a large number of particles does not contribute to the surface reconstruction in fluid implicit particle method(FLIP),a new method based on narrow-band FLIP and volume of fraction method is proposed.The method reduced the number of internal particles by means of particle resampling near the interface,and thus enhanced the overall computational efficiency;the volume fraction is tracked by the high accuracy numerical scheme with total variation diminishing in volume fraction model.The results show the new method proposed in the paper could achieve rich simulation effects of single phase and multiphase flow compared with the existing results.

关 键 词：流体模拟 NBFLIP 多相流 VOF模型 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]