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Computer virtual experiment on fluidized beds using a coarse-grained discrete particle method-EMMS-DPM
Lu, Liqiang1,2; Xu, Ji1; Ge, Wei1; Gao, Guoxian1; Jiang, Yong1,2; Zhao, Mingcan1,2; Liu, Xinhua1; Li, Jinghai1
2016-11-22
发表期刊CHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
卷号155期号:NOV页码:314-337
摘要

Virtual process engineering (VPE) aims to redefine the roadmap for process scaling-up and optimization, from stepwise experiments to high-performance computer simulations. This is a long-cherished dream of chemical engineers, but requires high standards of Accuracy (the agreement between the simulation and the real process), Capability (the computational speed, scale, and resolution of the simulation), and Efficiency (cost-effective and easy to use), in short, ACE. For complex processes such as gas-solid fluidization, the gap between state-of-the-art simulations and VPE is still huge in terms of ACE. However, the work reported in this paper narrows this gap significantly. In this study, a coarse-grained discrete particle method (DPM) defined by the energy-minimization multi-scale (EMMS) model is deployed for high resolution simulations of fluidized beds, with the gas- and solid-phase equations solved concurrently by CPUs and GPUs in a heterogeneous supercomputing system. With systematic optimization of the model, numerical method, software, and hardware, we are able to simulate lab- to pilot-scale fluidized beds at quasi-realtime speed, and conduct virtual experiments on such systems. This enables very-long-time simulations to obtain important engineering parameters such as the particle residence time distribution, attrition and deactivation indexes. This work demonstrates that the industrial application of VPE is almost on the horizon. (C) 2016 Elsevier Ltd. All rights reserved.

关键词Fluidization Coarse-graining Discrete Particle Method (Dpm) Energy-minimization Multi-scale (Emms) Model Virtual Process Engineering (Vpe) Real Time Simulation 3d Full-loop Simulation Residence Time Distribution (Rtd)
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.ces.2016.08.013
收录类别SCI
语种英语
关键词[WOS]GAS-SOLID FLOWS ; DIRECT NUMERICAL-SIMULATION ; STRUCTURE-DEPENDENT DRAG ; CFD SIMULATION ; EULERIAN SIMULATION ; 2-FLUID MODEL ; COLD-MODEL ; RESOLUTION ; DYNAMICS ; RISER
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(21225628 ; Chinese Academy of Sciences(XDA07080102) ; CAS Interdisciplinary Innovation Team ; 51106168 ; 11272312)
WOS记录号WOS:000385600400029
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21562
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Lu, Liqiang,Xu, Ji,Ge, Wei,et al. Computer virtual experiment on fluidized beds using a coarse-grained discrete particle method-EMMS-DPM[J]. CHEMICAL ENGINEERING SCIENCE,2016,155(NOV):314-337.
APA Lu, Liqiang.,Xu, Ji.,Ge, Wei.,Gao, Guoxian.,Jiang, Yong.,...&Li, Jinghai.(2016).Computer virtual experiment on fluidized beds using a coarse-grained discrete particle method-EMMS-DPM.CHEMICAL ENGINEERING SCIENCE,155(NOV),314-337.
MLA Lu, Liqiang,et al."Computer virtual experiment on fluidized beds using a coarse-grained discrete particle method-EMMS-DPM".CHEMICAL ENGINEERING SCIENCE 155.NOV(2016):314-337.
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