Flow regimes within horizontal particle-laden pipe flows
Xinchen Zhang, Graham J Nathan, Zhao F Tian, Rey C Chin
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2021
This study presents numerical simulations for particle-laden gas–solid flows in horizontal circular pipes to identify the key flow regimes as a function of the main dimensionless parameters. A Euler–Lagrangian approach is employed, using direct numerical simulations (DNS) coupled with a Lagrangian particle tracking (LPT) method, to consider the drag, gravitational and lift forces on particles, as well as the effect of inter-particle collisions. The influence of the Stokes number (Sk), mass loading ratio (Φm) and Froude number (Fr) on critical flow regimes is assessed to identify conditions under which gravity bias becomes either negligible or dominant with regard to fluid characteristics and..View full abstract
Awarded by Aus-tralian Research Council
Awarded by Australian Renewable Energy Agency (ARENA)
Financial support for the project has been provided by the Aus-tralian Research Council (DP180102045) , the Australian Renewable Energy Agency (ARENA, Grant No. 2015/RND054) and the Univer-sity of Adelaide Scholarship. The authors would like to acknowledge the Phoenix High-Performance Computing Centre at the University of Adelaide for resource and technical support.