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Numerical study on hydrodynamics of gas-solids circulating fluidized bed with L-valve 被引量:2
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作者 Hailun Ren Wenbin Li +3 位作者 Liang Zeng kunlei liu Zhongli Tang Donghui Zhang 《Particuology》 SCIE EI CAS CSCD 2023年第6期37-46,共10页
L-valve is often used as a non-mechanical valve for the circulation of solids in gas-solids fluidized bed(GSFB)due to its advantages in simple construction and easy control.The information on solids circu-lation rate ... L-valve is often used as a non-mechanical valve for the circulation of solids in gas-solids fluidized bed(GSFB)due to its advantages in simple construction and easy control.The information on solids circu-lation rate as well as the hydrodynamics performance of the CFB with L-valve is of great importance for its better control and design.This paper proposes a Eulerian-Eulerian approach based numerical model integrating the computational fluid dynamics(CFD)with turbulent model,the kinetic theory of granular flow(KTGF)and the drag model,thus the solids circulation rate and the local phase velocity as well as solids volume fraction can be predicted simultaneously.With this model,the hydrodynamics perfor-mance of the full loop GSCFB with a L-valve is analyzed in detail.It is found that the drag model affects the simulation significantly and the(energy minimization multiscale)EMMS method shows good per-formance in the full-loop simulation of GSCFB. 展开更多
关键词 Gas-solids circulating fluidizedbed L-valve Computational fluid dynamics Drag model Full-loop simulation
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