The stability of two stratified non-Newtonian liquids in Couette flow
type: Item
instance of: scholarly article
title: The stability of two stratified non-Newtonian liquids in Couette flow
zbMATH Open document ID: 0631.76003
DOI: 10.1016/0377-0257(87)85008-5
author: N. D. Waters
author: A. M. Keeley
published in: Journal of Non-Newtonian Fluid Mechanics
publication date: 1987-01-01T00:00:00Z
review text: Consideration is given to the stability of the interface between two Oldroyd liquids with shear-dependent viscosities, flowing in distinct layers while undergoing plane Couette flow. Results are presented as regions of stability in the plane determined by the logarithms of the viscosity and depth ratios. The work of previous authors for two Newtonian, power-law and constant-viscosity Oldroyd liquids is revealingly presented in a similar fashion. It is found that the dependence of the viscosities on shear-rate can drastically affect the regions of interfacial stability in a way over and above that due to just a change in the effective viscosity ratio. It is also found that for the Oldroyd liquids this viscosity variation affects the stability when it is present in the less-viscous layer.
Mathematics Subject Classification ID: 76A05
Mathematics Subject Classification ID: 76E99
Mathematics Subject Classification ID: 76M99
zbMATH DE Number: 4026993
zbMATH Keywords: stratified non-Newtonian liquids
zbMATH Keywords: stability of the interface
zbMATH Keywords: Oldroyd liquids with shear-dependent viscosities
zbMATH Keywords: plane Couette flow
MaRDI profile type: Publication
full work available at URL: 0377-0257(87)85008-5
OpenAlex ID: W2004664338
description: scientific article; zbMATH DE number 4026993