首页|Multi-level coarse-grained discrete element method modeling of cylinder particle flow in a rotating drum
Multi-level coarse-grained discrete element method modeling of cylinder particle flow in a rotating drum
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
The coarse-grained discrete element method(DEM)is probably a feasible option for simulating an actual drum-type biomass boiler,which contains over 10 million cylinder particles.A multi-level study was conducted based on particle and coarse-grained level data to evaluate the adequacy of the coarse-grained approach in terms of geometrical characteristics,kinematic features,and dynamic properties.Two scaling laws for contact parameters were used and compared during the simulations.The results show that the coarse-grained approach can accurately predict the positions of the free surface and active-passive interface,the mixing index,and the orientation properties.Deviations in the velocity fields may occur due to the worse flowability of coarse-grained particles near the free surface.The efficiency is significantly improved by the coarse-grained model compared with the corresponding original case(the same DEM code without a coarse-grained model was used for the original simulations).
Coarse-grained methodDiscrete element method(DEM)Cylinder particleRotating drumGranular flow
Lei Xu、Xiukai Wu、Shuai Wang、Shiyi Bao
展开 >
Institute of Process Equipment and Control Engineering,Zhejiang University of Technology,Hangzhou 310023,China
Engineering Research Center of Process Equipment and Remanufacturing,Ministry of Education,Zhejiang University of Technology,Hangzhou 310023,China
College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023,China
State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China
展开 >
国家自然科学基金国家自然科学基金浙江省自然科学基金Basic Public Welfare Research Program of Zhejiang Province
NETL
NSTL
万方数据
