Knowledge Management System Of Institute of process engineering,CAS
| Direct numerical simulation of sub-grid structures in gas-solid flow-GPU implementation of macro-scale pseudo-particle modeling | |
| Alternative Title | Chem. Eng. Sci. |
| Xiong, Qingang1,2; Li, Bo1,2; Chen, Feiguo1; Ma, Jingsen1; Ge, Wei1; Li, Jinghai1 | |
| 2010-10-01 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
 |
| ISSN | 0009-2509 |
| Volume | 65Issue:19Pages:5356-5365 |
| Abstract | Due to significant multi-scale heterogeneity, understanding sub-grid structures is critical to effective continuum-based description of gassolid flow. However, it is challenging for both physical measurements and numerical simulations. In this article, with the macro-scale pseudo-particle method (MaPPM) implemented on a GPU-based HPC system, up to 30,000 fluidized solids are simulated using the NS equation directly. The destabilization of uniform suspensions and the formation of solids clusters are reproduced in two-dimensional suspensions. Distinct scale-dependence of the statistical properties in the systems at moderate solid/gas density ratio is observed. Obvious cluster formation and its effect on drag coefficient are shown in a system at high solid/gas density ratio. On the computational side, about 19 folds speedup is obtained on one GT200 GPU, as compared to a mainstream CPU core. The necessity for investigating even larger systems is prospected. (C) 2010 Elsevier Ltd. All rights reserved.; Due to significant multi-scale heterogeneity, understanding sub-grid structures is critical to effective continuum-based description of gassolid flow. However, it is challenging for both physical measurements and numerical simulations. In this article, with the macro-scale pseudo-particle method (MaPPM) implemented on a GPU-based HPC system, up to 30,000 fluidized solids are simulated using the NS equation directly. The destabilization of uniform suspensions and the formation of solids clusters are reproduced in two-dimensional suspensions. Distinct scale-dependence of the statistical properties in the systems at moderate solid/gas density ratio is observed. Obvious cluster formation and its effect on drag coefficient are shown in a system at high solid/gas density ratio. On the computational side, about 19 folds speedup is obtained on one GT200 GPU, as compared to a mainstream CPU core. The necessity for investigating even larger systems is prospected. (C) 2010 Elsevier Ltd. All rights reserved. |
| Keyword | Multiphase Flow Fluidization Gpu Sub-grid-scale Simulation Suspension |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1016/j.ces.2010.06.035 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | LOW-REYNOLDS-NUMBER ; FLUID SYSTEMS ; HYDRODYNAMICS ; SUSPENSIONS ; BEDS |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000281060000005 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6304 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, IPE, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Xiong, Qingang,Li, Bo,Chen, Feiguo,et al. Direct numerical simulation of sub-grid structures in gas-solid flow-GPU implementation of macro-scale pseudo-particle modeling[J]. CHEMICAL ENGINEERING SCIENCE,2010,65(19):5356-5365. |
| APA | Xiong, Qingang,Li, Bo,Chen, Feiguo,Ma, Jingsen,Ge, Wei,&Li, Jinghai.(2010).Direct numerical simulation of sub-grid structures in gas-solid flow-GPU implementation of macro-scale pseudo-particle modeling.CHEMICAL ENGINEERING SCIENCE,65(19),5356-5365. |
| MLA | Xiong, Qingang,et al."Direct numerical simulation of sub-grid structures in gas-solid flow-GPU implementation of macro-scale pseudo-particle modeling".CHEMICAL ENGINEERING SCIENCE 65.19(2010):5356-5365. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Direct numerical sim（2621KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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