On the pulsating pressure gradient driven flow of viscoelastic liquids
作者:
A. Siginer,
期刊:
Journal of Rheology
(AIP Available online 1991)
卷期:
Volume 35,
issue 2
页码: 271-311
ISSN:0148-6055
年代: 1991
DOI:10.1122/1.550215
出版商: The Society of Rheology
关键词: Periodic flows;Pulsatile flows;Frechet stresses;Flow resonance;Wave velocities, in viscoelastic fluids;Effects on flow;LAMINAR FLOW;VISCOELASTICITY;PRESSURE GRADIENTS;LIQUIDS;PULSATIONS;RESONANCE;ALGORITHMS
数据来源: AIP
摘要:
Plane Poiseuille flow of viscoelastic liquids of the memory integral type driven by a quasiperiodic pressure gradient, pulsating around a nonzero mean, is investigated. A regular perturbation in terms of a dimensionless amplitude parameter is used. Kernel independent flow enhancement effects are predicted and closed form formulas are given for mass transport rates. Resonance effects are shown to take place. Additional mean flows, independent of the mean pressure gradient, may exist if the frequencies of the superposed waves satisfy certain relationships. An algorithm to determine the constitutive parameters is presented.
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