The simulations of annulus-core structure in CFB
文献类型：期刊论文
| 作者 | Ouyang, J; Li, JH; Sun, GG |
| 刊名 | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| 出版日期 | 2004-02-01 |
| 卷号 | 12期号:1页码:27-32 |
| 关键词 | simulation two-phase flow particle-trajectory model fluidization random force |
| ISSN号 | 1004-9541 |
| 其他题名 | Chin. J. Chem. Eng. |
| 中文摘要 | In this paper, the stochastic particle-trajectory model is proposed for simulating the dynamic behavior of circulating fluidized bed (CFB). In our model, the motion of solid phase is obtained by calculating the individual particle trajectory while gas flow is obtained by solving the Navier-Stokes Equation including two-phase interaction. For the calculation of solid phase, the motion of each particle is decomposed into a collision process and a suspension process. In suspension process, the less important and/or unclear forces are described as a random force considering gravity, drag force and pressure gradient. As a result, the proposed model gives some numerical simulations of CFB. It indicates that the stochastic particle-trajectory model can be used to simulate qualitatively the annulus-core structure of CFB and the influences of stochastic factors cannot be ignored. In a CFB, the coupling of stochastic factors between two phases makes the radial voidage decreased. Moreover, the upward motion of particles is mitigated by both stochastic factors and turbulence between two phases. |
| 英文摘要 | In this paper, the stochastic particle-trajectory model is proposed for simulating the dynamic behavior of circulating fluidized bed (CFB). In our model, the motion of solid phase is obtained by calculating the individual particle trajectory while gas flow is obtained by solving the Navier-Stokes Equation including two-phase interaction. For the calculation of solid phase, the motion of each particle is decomposed into a collision process and a suspension process. In suspension process, the less important and/or unclear forces are described as a random force considering gravity, drag force and pressure gradient. As a result, the proposed model gives some numerical simulations of CFB. It indicates that the stochastic particle-trajectory model can be used to simulate qualitatively the annulus-core structure of CFB and the influences of stochastic factors cannot be ignored. In a CFB, the coupling of stochastic factors between two phases makes the radial voidage decreased. Moreover, the upward motion of particles is mitigated by both stochastic factors and turbulence between two phases. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | DISCRETE PARTICLE SIMULATION ; FLUIDIZED-BED ; 2-PHASE FLOW ; DYNAMICS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000220243400004 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5019]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Northwestern Polytech Univ, Dept Math Appl, Xian 710072, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 3.Univ Petr, Dept Chem Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ouyang, J,Li, JH,Sun, GG. The simulations of annulus-core structure in CFB[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2004,12(1):27-32. |
| APA | Ouyang, J,Li, JH,&Sun, GG.(2004).The simulations of annulus-core structure in CFB.CHINESE JOURNAL OF CHEMICAL ENGINEERING,12(1),27-32. |
| MLA | Ouyang, J,et al."The simulations of annulus-core structure in CFB".CHINESE JOURNAL OF CHEMICAL ENGINEERING 12.1(2004):27-32. |
入库方式： OAI收割
来源：过程工程研究所
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