Linear stability and numerical analysis of vertical dense particulate flows in hydraulic conveying

doi:10.1103/PhysRevFluids.9.034303

IMECH-IR > 流固耦合系统力学重点实验室

	Linear stability and numerical analysis of vertical dense particulate flows in hydraulic conveying
	Zhang, Yan; Qiao JY(乔继延); Ren, Wan Long; Zhang XH(张旭辉); Li, Peng; Lu XB(鲁晓兵)
通讯作者	Zhang, Xu-Hui([email protected])
发表期刊	PHYSICAL REVIEW FLUIDS
	2024-03-08
卷号	9 期号:2 页码:24
ISSN	2469-990X
摘要	In this paper, we investigate the concentration instabilities that arise in vertical dense particulate flows during hydraulic conveying. The widely used two-fluid model for dense particulate flows is employed, and existing closure relations for drag correlation, stress tensors, etc., found in the literature are utilized. The ratio between the pipe diameter and particle size should be greater than 60 in this model. Then, an investigation is conducted to analyze the linear stability of the two-fluid model in a homogeneous and bounded pipe to determine the growth rates, frequency, and propagation velocity of small disturbances. Results show that the vertical dense particulate flows in hydraulic conveying exhibit instability across a broad spectrum of controlling parameters. We also obtain a fully nonlinear transient numerical solution for the two-fluid system using the finite difference method. The numerical solution of the model shows a high level of concordance with the linear stability analysis conducted, accurately capturing the corresponding growth rates in the region of wave formation. In addition, it has been found that small disturbances transform into saturation waves with finite amplitudes when the nonlinear effect becomes dominant. The saturation waves are asymmetrical due to the imbalance of inertia, wall shear stress, particle pressure, and particle viscosity mechanisms. The instable mode corresponds to plug flow or slug flow.
DOI	10.1103/PhysRevFluids.9.034303
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001187637700001
关键词[WOS]	WAVES ; INSTABILITIES ; FLUIDIZATION ; PREDICTION ; SIMULATION ; TRANSPORT ; VELOCITY ; MODELS
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China[12302516] ; National Natural Science Foundation of China[12132018]
项目资助者	National Natural Science Foundation of China
论文分区	二类
力学所作者排名	1
RpAuthor	Zhang, Xu-Hui
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94855
专题	流固耦合系统力学重点实验室
作者单位	Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yan,Qiao JY,Ren, Wan Long,et al. Linear stability and numerical analysis of vertical dense particulate flows in hydraulic conveying[J]. PHYSICAL REVIEW FLUIDS,2024,9,2,:24.Rp_Au:Zhang, Xu-Hui
APA	Zhang, Yan,乔继延,Ren, Wan Long,张旭辉,Li, Peng,&鲁晓兵.(2024).Linear stability and numerical analysis of vertical dense particulate flows in hydraulic conveying.PHYSICAL REVIEW FLUIDS,9(2),24.
MLA	Zhang, Yan,et al."Linear stability and numerical analysis of vertical dense particulate flows in hydraulic conveying".PHYSICAL REVIEW FLUIDS 9.2(2024):24.