| Title | Wake asymmetry weakening in viscoelastic fluids: Numerical discovery and mechanism exploration |
| Author | |
| Corresponding Author | Yu，Peng |
| Publication Years | 2022-09-01
|
| DOI | |
| Source Title | |
| ISSN | 1070-6631
|
| EISSN | 1089-7666
|
| Volume | 34Issue:9 |
| Abstract | Viscoelasticity weakens the asymmetry of laminar shedding flow behind a blunt body in a free domain. In the present study, this finding is confirmed by four unsteady viscoelastic flows with asymmetric flow configuration, i.e., flow over an inclined flat plate with various angles of incidence, flow over a rotating circular cylinder, flow over a circular cylinder with asymmetric slip boundary distribution, and flow over an inclined row of eight equally closely spaced circular cylinders (which can be considered as a single large blunt body) through direct numerical simulation combined with the Peterlin approximation of the finitely extensible nonlinear elastic model. At high Weissenberg number, an arc shape region with high elastic stress, which is similar to shock wave, forms in the frontal area of the blunt body. This region acts as a stationary shield to separate the flow into different regions. Thus, it seems that the free stream passes this shield instead of the original blunt body. As this shield has symmetric feature, the wake flow restores symmetry. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | National Natural Science Foundation of China (NSFC)["12172163","12071367"]
; Guangdong Basic and Applied Basic Research Foundation[2022A1515011057]
|
| WOS Research Area | Mechanics
; Physics
|
| WOS Subject | Mechanics
; Physics, Fluids & Plasmas
|
| WOS Accession No | WOS:000859313400003
|
| Publisher | |
| EI Accession Number | 20223712724413
|
| EI Keywords | Shock waves
; Viscoelasticity
; Wakes
|
| ESI Classification Code | Fluid Flow, General:631.1
; Classical Physics; Quantum Theory; Relativity:931
; Physical Properties of Gases, Liquids and Solids:931.2
|
| ESI Research Field | PHYSICS
|
| Scopus EID | 2-s2.0-85137590010
|
| Data Source | Scopus
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/401620 |
| Department | Department of Mechanics and Aerospace Engineering |
| Affiliation | 1.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China 2.Center for Complex Flows and Soft Matter Research,Southern University of Science and Technology,Shenzhen,518055,China 3.Department of Mathematics,Government College University Faisalabad,Faisalabad,38000,Pakistan 4.School of Mechanical and Electrical Engineering,Shenzhen Polytechnic,Shenzhen,518055,China 5.Department of Mechanics,Huazhong University of Science and Technology,Wuhan,430074,China |
| First Author Affilication | Department of Mechanics and Aerospace Engineering; Southern University of Science and Technology |
| Corresponding Author Affilication | Department of Mechanics and Aerospace Engineering; Southern University of Science and Technology |
| First Author's First Affilication | Department of Mechanics and Aerospace Engineering |
| Recommended Citation GB/T 7714 |
Peng，Sai,Huang，Tao,Kouser，Taiba,et al. Wake asymmetry weakening in viscoelastic fluids: Numerical discovery and mechanism exploration[J]. PHYSICS OF FLUIDS,2022,34(9).
|
| APA |
Peng，Sai,Huang，Tao,Kouser，Taiba,Zhuang，Xiao Ru,Xiong，Yong Liang,&Yu，Peng.(2022).Wake asymmetry weakening in viscoelastic fluids: Numerical discovery and mechanism exploration.PHYSICS OF FLUIDS,34(9).
|
| MLA |
Peng，Sai,et al."Wake asymmetry weakening in viscoelastic fluids: Numerical discovery and mechanism exploration".PHYSICS OF FLUIDS 34.9(2022).
|
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