Correction on drag coefficient in simulation of fast fluidized beds

摘要：

A modified drag coefficient model was developed by considering the effect of cluster existing in fast fluidized beds. The solid phase is simulated using Lagrangian particle trajectory model, and particle collision is modeled by means of direct simulation Monte Carlo method. The gas phase turbulent flow is modeled using large eddy simulation. Compared with the experimental data, predicted results given by the new drag coefficient model are more reasonable than that by traditional drag coefficient model.

关键词： gas-solid flow drag coefficient cluster effect large eddy simulation fast fluidized beds

作者: L.M.Zou Y.C.Guo

作者单位: Department of Engineering Mechanics, Tsinghua University, Beijing, 100084 China

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）