Unified stability condition for particulate and aggregative fluidization-Exploring energy dissipation with direct numerical simulation
文献类型：期刊论文
| 作者 | Wei, Min1,2; Wang, Limin1; Li, Jinghai1 |
| 刊名 | PARTICUOLOGY
 |
| 出版日期 | 2013-04-01 |
| 卷号 | 11期号:2页码:232-241 |
| 关键词 | Direct numerical simulation Fluidization Stability condition Lattice-Boltzmann method Time-driven hard-sphere model |
| 英文摘要 | Fully resolved simulations of particulate and aggregative fluidization systems are performed successfully with the so-called combined lattice Boltzmann method and time-driven hard-sphere model (LBM-TDHS). In this method, the discrete particle phase is described by time-driven hard-sphere model, and the governing equations of the continuous fluid phase are solved with lattice Boltzmann method. Particle-fluid coupling is implemented by immersed moving boundary method. Time averaged flow structure of the simulated results show the formation of core-annulus structure and sigmoid distribution of voidage in the axial direction, which are typical phenomena in fluidization systems. Combining the results of the simulation, the energy consumption N-st for suspending and transporting solids is calculated from the direct numerical simulation (DNS) of fluidization, and the stability criterion N-st/N-T = min proposed in EMMS/bubbling model is verified numerically. Furthermore the numerical results show that the value of N-st/N-T in particulate fluidization is much higher than that in aggregative fluidization, but N-st/N-T = min is effective for both particulate and aggregative fluidization. (C) 2012 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 关键词[WOS] | PARTICLE-FLUID SYSTEMS ; BOLTZMANN-EQUATION ; TRANSITION ; FLOWS ; CRITERION ; SPECTRUM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317252400014 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13742]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, EMMS Grp, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Min,Wang, Limin,Li, Jinghai. Unified stability condition for particulate and aggregative fluidization-Exploring energy dissipation with direct numerical simulation[J]. PARTICUOLOGY,2013,11(2):232-241. |
| APA | Wei, Min,Wang, Limin,&Li, Jinghai.(2013).Unified stability condition for particulate and aggregative fluidization-Exploring energy dissipation with direct numerical simulation.PARTICUOLOGY,11(2),232-241. |
| MLA | Wei, Min,et al."Unified stability condition for particulate and aggregative fluidization-Exploring energy dissipation with direct numerical simulation".PARTICUOLOGY 11.2(2013):232-241. |
入库方式： OAI收割
来源：过程工程研究所
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