ValidationofEMMS_base_省略_mannsimulations.pdf

Particuology 9 (2011) 365–373 Contents lists available at ScienceDirect Particuology j o u rn al h omepage: www.el /locate/partic Validation of EMMS-based drag model using lattice Boltzmann simulations on GPUs Yun Zhang a,b , Wei Ge b,∗ , Xiaowei Wang b , Chaohe Yang a a State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China b The EMMS Group, State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China a r t i c l e i n f o a b s t r a c t Article history: Interphase momentum transport in heterogeneous gas–solid systems with multi-scale structure is of Received 25 December 2010 great importance in process engineering. In this article, lattice Boltzmann simulations are performed Received in revised form 13 March 2011 on graphics processing units (GPUs), the computational power of which exceeds that of CPUs by more Accepted 21 March 2011 than one order of magnitude, to investigate incompressible Newtonian flow in idealized multi-scale particle–fluid systems. The structure consists of a periodic array of clusters, each constructed by a bundle Keywords: of cylinders. Fixed pressure boundary condition is implemented by applying a constant body force to EMMS the flow through the medium. The bounce-back scheme is adopted on the fluid–soli