TY - JOUR
TI - Study on reverse-quadtree adaptive grid technique
AU - Huang Hai-Ming
AU - Huang Guo
AU - Xu Xiaoliang
AU - Hu Yumeng
JN - Thermal Science
PY - 2012
VL - 16
IS - 5
SP - 1515
EP - 1519
PT - Article
AB - The fast multipole method is universally adopted for solving the convection  equation in the vortex method. In this paper, a reverse-quadtree adaptive  grid technique is proposed in order to improve the quadtree adaptive grid  technique in the fast multipole method. Taking flow past a cylinder as an  example, the results indicate the reverse-quadtree scheme can save more  calculation time than the quadtree scheme when the particle population is  large enough.