Saffman–taylor instability
WebOct 1, 2024 · The Saffman-Taylor instability has attracted considerable interest because it helps to understand the fundamental aspects of patterns formation in a morphologically unstable interface between two fluids in a porous medium or a Hele-Shaw cell. WebAn experiment on the Saffman– Taylor instability with wetting fluids is presented that explores a greater range of capillary numbers than did the original experiment of Saffman and Taylor. It turns out that no clear one-half plateau for the finger size is observed, and that the ensemble of experiments cannot be analysed in terms of a single control parameter.
Saffman–taylor instability
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WebNov 7, 2007 · A theoretical study of the Saffman-Taylor instability criterion in a Hele-Shaw cell when an inviscid fluid pushes a shear thinning fluid, is presented. The shear thinning fluid model consists of three independent fluids, two of which are Newtonian while the viscosity of the third is linearly dependent of the shear rate. The corresponding Darcy’s … WebSAFFMAN-TAYLOR INSTABILITY. In 1950, Taylor pointed out that when two superposed immiscible fluids of differing densities and small viscosities are accelerated in a direction …
WebAug 8, 2024 · In this paper, a numerical solution for Saffman–Taylor instability of immiscible nonlinear viscoelastic-Newtonian displacement in a Hele–Shaw cell is presented. Here, a nonlinear viscoelastic fluid pushes a Newtonian fluid and the volume of fluid method is applied to predict the formation of two phases. The Giesekus model is considered as … WebAn experiment on the Saffman-Taylor instability with wetting fluids is presented that explores a greater range of capillary numbers than did the original experiment of Saffman …
WebJan 1, 2024 · In this study, the effect of anisotropy of porous media on Saffman–Taylor instability (viscous fingering instability) of viscoelastic fluids is investigated for the first time. The Oldroyd-B model is used as the constitutive equation of viscoelastic phase. In linear stability analysis, the quasi-steady state approximation and six order ... WebJun 4, 1998 · The Saffman–Taylor fingers are studied in cells that have the form of sectors of a disk. The less viscous fluid can be injected at the apex (divergent flow) or at the …
WebNov 16, 2016 · A variant of Saffman-Taylor instability 10,11, in this case, results in the formation of branched (fractal-like) structures of viscous fluid on both the cell plate surfaces as a mirror image of ...
WebMar 16, 2024 · The Saffman–Taylor instability for yield stress fluids appears in various situations where two solid surfaces initially separated by such a material (paint, puree, … fakie shop onlineWebThe Saffman–Taylor fingers are studied in cells that have the form of sectors of a disk. The less viscous fluid can be injected at the apex (divergent flow) or at the periphery (convergent flow). As in the linear geometry, at large velocities, a unique finger tends to occupy a well determined fraction λ of the cell angular width. This fraction is a function of the angle of … fakiha baig the canadian pressWebNov 7, 2007 · A theoretical study of the Saffman-Taylor instability criterion in a Hele-Shaw cell when an inviscid fluid pushes a shear thinning fluid, is presented. The shear thinning … fakihatou toulabWebOct 13, 2015 · The Saffman-Taylor instability in a Hele Shaw cell resulted from dyed milk (blue, then yellow) injected into a clear liquid detergent. May 23, 2015. FlowVis@CU. 0. 2015, 2015 Team First, Flow Categories, Flow Vis Techniques, Images, Marked Area, Media, Saffman-Taylor Instability, z Class & Assignment. fakih and associatesWebJan 23, 2013 · A variant of the classic Saffman-Taylor instability problem is reported, in which the surface tension at the fluid-fluid interface depends on the interfacial curvature. fakih corryWebObviously, Saffman-Taylor instability is defined by properties of moving liquid and porous medium. To solve this problem of oil extracting industry, different gels are used instead of … fakih collectionsfakih center