Eulerian-Lagrangian simulation of wood flour and wind distribution during the impulse-cyclone airflow drying process

• DOI: 10.15376/biores.17.1.75-93
• Publication Date: 2022-02-19T05:09:11Z
• Authors: Feng Chen; Yinan Liu; Xiaohui Ni; Xinghua Xia
• Keywords: 0103 physical sciences; 01 natural sciences

To improve the particle transport computational fluid dynamics models of impulse-cyclone airflow drying systems, a Eulerian-Lagrangian discrete model (commercial code ANSYS Fluent 2019 R1) was extended to describe temperature field, velocity and distribution in impulse cyclone dryers. The results showed that considerably changed after wood flour added into system, with an approximate difference between particles 2 m/s. An increased feed rate led backflow area at bottom dryer, which caused reflux long residence time near dryer. By comparing calculated temperature, velocity, curves measured sensor values, error simulated value experimental only approximately 15%. current work verifies process established via simulation method effective. conclusion provides reliable theoretical basis for technological design thus providing way optimize structure systems future.