CAS OpenIR
Supersonic and near-equilibrium gas-driven granular flow
Wang, Junwu1,2,3; Zhao, Peng1,2; Zhao, Bidan1,2
2020-11-01
Source PublicationPHYSICS OF FLUIDS
ISSN1070-6631
Volume32Issue:11Pages:8
AbstractStudies have found the surprising ability of hydrodynamic theory, which is based on the validity of the local thermodynamic equilibrium postulate, to capture the main features of shock waves in supersonic granular gases. However, its underlying mechanism remains unclear. To explore the factors underpinning the relationship between hydrodynamic theory and the behavior of shock waves in granular gases, a discrete particle method was used to systematically study gas-driven granular flow in gas-solid fluidized beds. It was shown that the flow of granular gases is typically supersonic, consistent with the previous understanding of shear granular flow. However, the Knudsen numbers and entropy criterion, which are used to quantify the distance from the local thermodynamic equilibrium state, were generally small. This finding explains why hydrodynamic theory can describe the behavior of supersonic granular flows; that is, shock waves in granular gases are locally near-equilibrium even though they are supersonic. This study also indicates that shock waves in ordinary gases and granular gases are fundamentally different.
DOI10.1063/5.0030707
Language英语
WOS KeywordDYNAMIC MULTISCALE METHOD ; SOLID FLOW ; CLUSTERING INSTABILITY ; 2-FLUID MODEL ; SIMULATION ; VALIDITY ; WAVES ; BED
Funding ProjectNational Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[21978295] ; National Natural Science Foundation of China[91834303] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A13] ; Key Research Program of Frontier Science, Chinese Academy of Sciences[QYZDJ-SSW-JSC029] ; Transformational Technologies for Clean Energy and Demonstration Strategic Priority Research Program from the Chinese Academy of Sciences[XDA21030700]
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding OrganizationNational Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of Frontier Science, Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration Strategic Priority Research Program from the Chinese Academy of Sciences
WOS IDWOS:000589658900002
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42613
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Junwu
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Junwu,Zhao, Peng,Zhao, Bidan. Supersonic and near-equilibrium gas-driven granular flow[J]. PHYSICS OF FLUIDS,2020,32(11):8.
APA Wang, Junwu,Zhao, Peng,&Zhao, Bidan.(2020).Supersonic and near-equilibrium gas-driven granular flow.PHYSICS OF FLUIDS,32(11),8.
MLA Wang, Junwu,et al."Supersonic and near-equilibrium gas-driven granular flow".PHYSICS OF FLUIDS 32.11(2020):8.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Junwu]'s Articles
[Zhao, Peng]'s Articles
[Zhao, Bidan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Junwu]'s Articles
[Zhao, Peng]'s Articles
[Zhao, Bidan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Junwu]'s Articles
[Zhao, Peng]'s Articles
[Zhao, Bidan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.