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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
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume155Issue:NOVPages:314-337
Abstract

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.

KeywordFluidization 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)
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.ces.2016.08.013
Indexed BySCI
Language英语
WOS KeywordGAS-SOLID FLOWS ; DIRECT NUMERICAL-SIMULATION ; STRUCTURE-DEPENDENT DRAG ; CFD SIMULATION ; EULERIAN SIMULATION ; 2-FLUID MODEL ; COLD-MODEL ; RESOLUTION ; DYNAMICS ; RISER
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21225628 ; Chinese Academy of Sciences(XDA07080102) ; CAS Interdisciplinary Innovation Team ; 51106168 ; 11272312)
WOS IDWOS:000385600400029
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21562
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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