Particle-resolved simulation of randomly packed pebble beds with a novel fluid-solid coupling method

doi:10.1016/j.fusengdes.2020.111953

	Particle-resolved simulation of randomly packed pebble beds with a novel fluid-solid coupling method
	Wongkham, Juthamas 1,2; Wen, Tao 2,3; Lu, Bona 1,2; Cui, Lijie 2; Xu, Junbo 1; Liu, Xiaoxing 1,2
刊名	FUSION ENGINEERING AND DESIGN
	2020-12-01
卷号	161 页码:10
关键词	Pebble bed Mesh Adaption Immersed boundary method CFD Particle-resolve simulation Complex geometry
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2020.111953
英文摘要	The Helium Cooled Pebble Bed (HCPB) is a common type of fusion reactor. An in-depth understanding of the helium flow behaviors in the interstitial void space between pebbles and the influence of hydrodynamics on the efficiency of purging tritium is important for the better design of the tritium breeding blanket. Particle-resolved simulation strategy has been widely used to model the HCPB system but generally suffers a tedious mesh generation process due to the complex geometries. To overcome this difficulty, this study develops a novel fluid-solid coupling strategy, p-IBM, which combines the porosity-based mesh adaption and the immersed boundary method. A small pebble bed consisting of 158 particles is first simulated with this method and good agreement with the traditional particle-resolved simulation using body-fitted grids is achieved. The proposed p-IBM method is then applied to simulate a larger pebble bed containing 3190 particles, where boundary wall effects on key parameters such as the pressure drop, fluid channeling and purging process of tritium are evaluated and discussed.
资助项目	National Key Research and Development Program of China[2016YFF0102601] ; "Strategic Priority Research Program" of the Chinese Academy of Sciences[XDA21040402] ; Fund of State Key Laboratory of Multiphase complex systems[MP CS -2019-A-04] ; Belt and Road Scholarship
WOS关键词	NUMERICAL SIMULATIONS ; CFD SIMULATION ; PRESSURE-DROP ; HEAT-TRANSFER ; FLOW ; REACTORS ; DEM ; BLANKET ; DESIGN
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000597323200008
资助机构	National Key Research and Development Program of China ; "Strategic Priority Research Program" of the Chinese Academy of Sciences ; Fund of State Key Laboratory of Multiphase complex systems ; Belt and Road Scholarship
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42939]
专题	中国科学院过程工程研究所
通讯作者	Xu, Junbo; Liu, Xiaoxing
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Sino Danish Ctr Educ & Res, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wongkham, Juthamas,Wen, Tao,Lu, Bona,et al. Particle-resolved simulation of randomly packed pebble beds with a novel fluid-solid coupling method[J]. FUSION ENGINEERING AND DESIGN,2020,161:10.
APA	Wongkham, Juthamas,Wen, Tao,Lu, Bona,Cui, Lijie,Xu, Junbo,&Liu, Xiaoxing.(2020).Particle-resolved simulation of randomly packed pebble beds with a novel fluid-solid coupling method.FUSION ENGINEERING AND DESIGN,161,10.
MLA	Wongkham, Juthamas,et al."Particle-resolved simulation of randomly packed pebble beds with a novel fluid-solid coupling method".FUSION ENGINEERING AND DESIGN 161(2020):10.