石油化工2012，Vol.41Issue(5)：544-550,7.
基于格子Boltzmann方法颗粒团聚物曳力系数的数值模拟及应用研究
Numerical Simulation and Application of Drag Coefficient of Particle Clusters in a Riser Based on Lattice-Boltzmann Method
沈志恒 1马宏文 2陆慧林 3宋廷钰 1李铮1
作者信息
- 1. 海洋石油工程股份有限公司 设计公司,天津 300451
- 2. 中海油能源发展股份有限公司 油田建设渤海工程分公司,天津 300451
- 3. 哈尔滨工业大学 能源科学与工程学院,黑龙江 哈尔滨 150001
- 折叠
摘要
Abstract
The flow process of particle clusters in a circulating fluidized bed riser was numerically simulated by using gas-solid two-phase flow Lattice Boltzmann-Discrete particle model, in which D2Q9 model, Newton's second law and half-way rebound boundary condition with second-order calculation accuracy were adopted to calculate gas flow, solid flow track and wall surface, respectively. The results indicated that the drag coefficient of the particle clusters reduces with the increase of their Reynolds number and porosity. The particle density and particle mass flow rate radial distribution in the riser were simulated by Euler-Euler two-fluid model based on the drag force model of Lattice Boltzmann method, the results coincided with the experimental results.关键词
提升管/格子Boltzmann方法/曳力系数/颗粒团聚物/数值模拟Key words
riser/ Lattice Boltzmann method/ drag coefficient/ particle cluster/ numerical simulation分类
化学化工引用本文复制引用
沈志恒,马宏文,陆慧林,宋廷钰,李铮..基于格子Boltzmann方法颗粒团聚物曳力系数的数值模拟及应用研究[J].石油化工,2012,41(5):544-550,7.
