Flow characteristics analysis of purge gas in unitary pebble beds by CFD simulation coupled with DEM geometry model for fusion blanket

doi:10.1016/j.fusengdes.2016.12.003

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Flow characteristics analysis of purge gas in unitary pebble beds by CFD simulation coupled with DEM geometry model for fusion blanket
	Chen, Youhua 1,2; Chen, Lei 2; Liu, Songlin 2; Luo, Guangnan 1,2
刊名	FUSION ENGINEERING AND DESIGN
	2017
卷号	114 期号:无页码:84-90
关键词	Blanket Pebble Bed Purge Gas Dem-cfd Flow Characteristics
DOI	10.1016/j.fusengdes.2016.12.003
文献子类	Article
英文摘要	Helium is used as the purge gas to sweep tritium out when it flows through the lithium ceramic and beryllium pebble beds in solid breeder blanket for fusion reactor. The flow characteristics of the purge gas will dominate the tritium sweep capability and tritium recovery system design. In this paper, a computational model for the unitary pebble bed was conducted using DEM-CFD method to study the purge gas flow characteristics in the bed, which include porosity distribution between pebbles, velocity field distribution, pressure field distribution, pressure drop as well as the wall effects on velocity distribution. Pebble bed porosity and velocity distribution with great fluctuations were found in the near-wall region and detailed flow characteristics between pebbles were displayed clearly. The results show that the numerical simulation model has an error with about 11% for estimating pressure drop when compared with the Ergun equation. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	FIXED-BED ; PRESSURE-DROP ; EXPERIMENTAL VALIDATION ; NUMERICAL SIMULATIONS ; PACKED-BEDS ; REACTORS
WOS研究方向	Nuclear Science & Technology
语种	英语
WOS记录号	WOS:000393004700013
资助机构	National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; National special project for magnetic confined nuclear fusion energy(2013GB108004 ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; Chinese National Natural Science Foundation(11175207) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002) ; 2015GB108002)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31682]
专题	合肥物质科学研究院_中科院等离子体物理研究所
作者单位	1.Univ Sci & Technol China, Hefei 230027, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Chen, Youhua,Chen, Lei,Liu, Songlin,et al. Flow characteristics analysis of purge gas in unitary pebble beds by CFD simulation coupled with DEM geometry model for fusion blanket[J]. FUSION ENGINEERING AND DESIGN,2017,114(无):84-90.
APA	Chen, Youhua,Chen, Lei,Liu, Songlin,&Luo, Guangnan.(2017).Flow characteristics analysis of purge gas in unitary pebble beds by CFD simulation coupled with DEM geometry model for fusion blanket.FUSION ENGINEERING AND DESIGN,114(无),84-90.
MLA	Chen, Youhua,et al."Flow characteristics analysis of purge gas in unitary pebble beds by CFD simulation coupled with DEM geometry model for fusion blanket".FUSION ENGINEERING AND DESIGN 114.无(2017):84-90.