NUMERICAL SIMULATION OF THREE-DIMENSIONAL FLOW IN A VORTEX CLEANER BASED ON CFD
Base on the computational fluid dynamics (CFD) method, the Fluent software platform was adopted to simulate the three-dimensional flow field of pulp suspension in a vortex cleaner. The fibers were modeled as spheres with equivalent surface area. Real pulps were analyzed to provide raw material data for the simulations. The incompressible three-dimensional Navier–Stokes equations were used to describe the fluid motion. Reynolds stress model(RSM) and discrete particle model(DPM) model were used to describe the three-dimensional flow of pulp, and the trajectory of fibers and impurities was tracked in the Lagrangian framework. Through the analysis of velocity field, streamline in cleaner and the tracking of particle trajectories, the structural optimization design principles and improvement directions of cleaner were proposed. The results revealed that with an increase in inlet flow rate and decrease in lower outlet diameter, the cyclone sharpness of separation improved.
vortex cleaner CFD numerical simulation
Hu Zhijun Lei Lirong
School of Light Industry, Zhejiang University of Science and Technology, Hangzhou 310023, China The Paper making & Pollution Control Engineering Research Center, South China University of Technology,
国际会议
广州
英文
1240-1243
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）