化工学报2003，Vol.54Issue(10)：1501-1503,3.
大长径比细长颗粒的沉降实验和曳力系数的关联
EMPIRICAL CORRELATION OF DRAG COEFFICIENT FOR SETTLING SLENDER PARTICLES WITH LARGE ASPECT RATIO
摘要
Abstract
The sedimentation of slender particles with different densities in stagnant Newtonian fluid was studied. Different from former studies based on the concept of sphericity, the drag coefficient of slender particles is quantitatively correlated with the orientation and Reynolds number based on the particle cylindrical diameter. With the aid of Galileo number,the particle cylindrical diameter, the proposed correlation represents very well the experimental data with aspect ratios, orientations, particle material and fluid properties in wide ranges.关键词
细长颗粒/大长径比/曳力系数/取向/沉降Key words
slender particle/large aspect ratio/drag coefficient/orientation/sedimentation分类
化学化工引用本文复制引用
范茏,杨超,禹耕之,毛在砂..大长径比细长颗粒的沉降实验和曳力系数的关联[J].化工学报,2003,54(10):1501-1503,3.基金项目
国家自然科学基金(No.20106016,No.20236050)资助项目. （No.20106016,No.20236050）
