Shear banding flow in the Johnson-Segalman fluid

P. Español; X. F. Yuan; R. C. Ball

doi:10.1016/0377-0257(96)01451-6

Shear banding flow in the Johnson-Segalman fluid

P. Español, X. F. Yuan, R. C. Ball

Research output: Contribution to journal › Article › peer-review

Abstract

The behaviour of the Johnson-Segalman fluid in a Couette geometry is investigated with a combination of numerical, analytical and simulation techniques. The results strongly suggest that there exists a selection mechanism for the position of the interface of discontinuity due to the constitutive instability typical of models with non-monotonic constitutive equations. This implies that the spurt phenomenon exhibits a jump discontinuity instead of a change of slope in the flow curve.

Original language	English
Pages (from-to)	93-109
Number of pages	16
Journal	Journal of Non-Newtonian Fluid Mechanics
Volume	65
Issue number	1
DOIs	https://doi.org/10.1016/0377-0257(96)01451-6
Publication status	Published - Jul 1996

Keywords

Johnson-Segalman fluid
Shear banding flow

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10.1016/0377-0257(96)01451-6

Cite this

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title = "Shear banding flow in the Johnson-Segalman fluid",

abstract = "The behaviour of the Johnson-Segalman fluid in a Couette geometry is investigated with a combination of numerical, analytical and simulation techniques. The results strongly suggest that there exists a selection mechanism for the position of the interface of discontinuity due to the constitutive instability typical of models with non-monotonic constitutive equations. This implies that the spurt phenomenon exhibits a jump discontinuity instead of a change of slope in the flow curve.",

keywords = "Johnson-Segalman fluid, Shear banding flow",

author = "P. Espa{\~n}ol and Yuan, {X. F.} and Ball, {R. C.}",

note = "CAN 125:146042 48-7 Unit Operations and Processes Journal 0377-0257 written in English",

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AU - Ball, R. C.

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PY - 1996/7

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N2 - The behaviour of the Johnson-Segalman fluid in a Couette geometry is investigated with a combination of numerical, analytical and simulation techniques. The results strongly suggest that there exists a selection mechanism for the position of the interface of discontinuity due to the constitutive instability typical of models with non-monotonic constitutive equations. This implies that the spurt phenomenon exhibits a jump discontinuity instead of a change of slope in the flow curve.

AB - The behaviour of the Johnson-Segalman fluid in a Couette geometry is investigated with a combination of numerical, analytical and simulation techniques. The results strongly suggest that there exists a selection mechanism for the position of the interface of discontinuity due to the constitutive instability typical of models with non-monotonic constitutive equations. This implies that the spurt phenomenon exhibits a jump discontinuity instead of a change of slope in the flow curve.

KW - Johnson-Segalman fluid

KW - Shear banding flow

U2 - 10.1016/0377-0257(96)01451-6

DO - 10.1016/0377-0257(96)01451-6

M3 - Article

SN - 0377-0257

VL - 65

SP - 93

EP - 109

JO - Journal of Non-Newtonian Fluid Mechanics

JF - Journal of Non-Newtonian Fluid Mechanics

IS - 1

ER -

Shear banding flow in the Johnson-Segalman fluid

Abstract

Keywords

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