Reconstruction of the internal volume fraction for particle-liquid system from imaging indicators by refractive index matching

doi:10.1007/s10409-023-23233-x

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Reconstruction of the internal volume fraction for particle-liquid system from imaging indicators by refractive index matching
	Sun, Yunhui 2; Jiao, Jiajun 2; An, Yi 1; Wang, Xiaoliang 2; Liu, Qingquan 2
刊名	ACTA MECHANICA SINICA
	2024-02-01
卷号	40 期号:2 页码:15
关键词	Refractive index matching Volume fraction Area fraction Voronoi diagram Inclined flow
ISSN号	0567-7718
DOI	10.1007/s10409-023-23233-x
通讯作者	Wang, Xiaoliang(wangxiaoliang36@bit.edu.cn)
英文摘要	Refractive index matching (RIM) is widely used to investigate particle-liquid mixture flows. However, determining the volume fraction phi in RIM is generally empirical and lacks theoretical or experimental basis. To reasonably reconstruct the internal phi, this study performs systematic calibration experiments to study the relationship between phi and the imaging indicators. The results show that the model based on area fraction c(2D) will induce a large error for low phi owing to the instability of the particle's apparent size. The traditionally adopted proportional function phi = ac(2D) is only valid for phi near the calibration point. A predictive model is proposed based on the size of the Voronoi cell, d(poly), which proves to be more accurate and stable in RIM experiments. The d(poly)-based model is applied to dense granular flows down an inclined plane to study the internal profiles of phi and the bottom normal stress.
资助项目	National Natural Science Foundation of China[12032005] ; National Natural Science Foundation of China[12172057]
WOS关键词	SIZE DISTRIBUTIONS ; FLOWS ; VISCOSITY ; DENSITY
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:001160667000009
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94546]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Wang, Xiaoliang
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yunhui,Jiao, Jiajun,An, Yi,et al. Reconstruction of the internal volume fraction for particle-liquid system from imaging indicators by refractive index matching[J]. ACTA MECHANICA SINICA,2024,40(2):15.
APA	Sun, Yunhui,Jiao, Jiajun,An, Yi,Wang, Xiaoliang,&Liu, Qingquan.(2024).Reconstruction of the internal volume fraction for particle-liquid system from imaging indicators by refractive index matching.ACTA MECHANICA SINICA,40(2),15.
MLA	Sun, Yunhui,et al."Reconstruction of the internal volume fraction for particle-liquid system from imaging indicators by refractive index matching".ACTA MECHANICA SINICA 40.2(2024):15.