Analytical and numerical study for oscillatory flow of viscoelastic fluid in a tube with isosceles right triangular cross section.
A theoretical investigation is carried out to analyze the oscillatory flow of second-grade fluid under the periodic pressure gradient in a long tube of isosceles right triangular cross section in the present study. The analytical expressions for the velocity profile and phase difference are obtained...
| Publicado en: | Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences Vol. 76; no. 11; pp. 1031 - 1045 |
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| Autores principales: | , , , |
| Formato: | Artículo |
| Publicado: |
De Gruyter
Nov2021
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=153376502&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 153376502 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 09320784 FL07 jtl: Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences issn: 09320784 maglogo: N pubinfo: dt: Nov2021 vid: 76 iid: 11 pid: 1734 pub: De Gruyter artinfo: ui: 153376502 10.1515/zna-2021-0172 ppf: 1031 ppct: 14 formats: tig: atl: Analytical and numerical study for oscillatory flow of viscoelastic fluid in a tube with isosceles right triangular cross section. aug: au: Li, Yi Huang, Yaoxin Zhao, Moli Wang, Shaowei affil: Department of Engineering Mechanics, School of Civil Engineering, Shandong University, Jinan, 250061, P. R. China su: Viscoelastic materials Fluid flow Finite difference method Crank-Nicolson method Phase velocity sug: subj: Viscoelastic materials Fluid flow Finite difference method Crank-Nicolson method Phase velocity keyword: finite difference method isosceles right triangular oscillatory flow second grade fluid ab: A theoretical investigation is carried out to analyze the oscillatory flow of second-grade fluid under the periodic pressure gradient in a long tube of isosceles right triangular cross section in the present study. The analytical expressions for the velocity profile and phase difference are obtained. The numerical solutions are calculated by using the finite difference method with Crank–Nicolson (C–N) scheme. In comparison with the Newtonian fluid (λ = 0), the effects of retardation time, Deborah number and Womersley number on the velocity profile and phase difference are discussed numerically and graphically. For smaller Womersley number, the behavior of second-grade fluid is dominated by viscosity. For larger Womersley number α = 20, the flow becomes more difficult to be generated under periodic pressure gradient with increasing retardation time. Furthermore, the analytical expressions of the mean velocity amplitude and phase difference are given explicitly for discussing. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2021 holdings: @attributes: islocal: N |
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