文档介绍：第 28 卷第 17 期中国电机工程学报 Jun. 15, 2008 2008 年 6 月 15 日 Proceedings of the CSEE ?2008 . 21 文章编号: 0258-8013 (2008) 17-0021-05 中图分类号: TK 223 文献标识码: A 学科分类号: 470 ? 20 垂直管煤粉高压密相气力输送特性的模拟研究蒲文灏,熊源泉,赵长遂,梁财,陈晓平,鹿鹏,范春雷( 东南大学能源与环境工程学院,江苏省南京市 210096) Numerical Simulation of Hydrodynamic Properties of Dense Pneumatic Conveying of Pulverized Coal in Vertical Pipe at High Pressure PU Wen-hao, XIONG Yuan-quan, ZHAO Chang-sui, LI ANG Cai, CHEN Xiao-ping, LU Peng, FAN Chun-lei (School of Energy and Environment, Southeast Un iversity, Nanjing 210096, Jiangsu Province, China) ABSTRACT: A k- ε-k p - ε p two fluid model was introduced to study three dimensional flow behaviors of dense phase pneumatic conveying of pulverized coal in vertical pipe on the basis of the ic theory of granular flow, taking into account the turbulent interaction between gas phase and particle phase. The results of influence of superficial velocity, transport pressure and particle diameter were reported. The results indicate that as the superficial velocity increases pressure gradient decreases first then increases; as the transpor t pressure decreases pressure gradient declines and an increase in particle size leads to increment in pressure gradie nt. The simulation results on pressure gradient were validated by the expe