NDLI: The W-criterion for the onset of shear banding in complex fluids

Content Provider	Springer Nature Link
Author	Winter, H . Henning
Copyright Year	2016
Abstract	A stability analysis of planar shear flow shear of a homogeneous, complex fluid predicts that shear banding instabilities can grow in fluids with a shear thinning strength above W c = 1 and dampen out in fluids with W < 1. The shear thinning strength, $$ W\left(\dot{\gamma}\right)=-0.32em \partial 0.5em \log \eta /\partial 0.5em \log \dot{\gamma} $$ , arises naturally as the lead material function for the stability analysis of shear thinning fluids. The onset of shear banding is modeled as shear-thinning instability, which is attributed to anomalously strong shear thinning. Not considered here are inertial or elastic instabilities. In lack of suitable viscosity data from experiments, a Carreau powerlaw fluid and a Carreau-Yasuda powerlaw fluid serve as testbeds for the W-criterion. The analysis shows that the limiting high shear viscosity, η ∞, plays an important role in shear banding and that the ratio of the limiting high shear viscosity and zero shear viscosity, η ∞/η 0, has to be sufficiently small for shear banding to occur. The main purpose of this brief communication is to share this new stability criterion. Extensive testing is still needed and is planned for future study.
Starting Page	873
Ending Page	878
Page Count	6
File Format	PDF
ISSN	00354511
Journal	Rheologica Acta
Volume Number	55
Issue Number	11-12
e-ISSN	14351528
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-10-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Shear instability Shear banding Shear thinning strength Carreau-Yasuda fluid Limiting high shear viscosity Characterization and Evaluation of Materials Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Mechanical Engineering Food Science
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Materials Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Prediction of onset of Taylor-Couette instability for shear-thinning fluids

Phenomenology and physical origin of shear localization and shear banding in complex fluids

The shear viscosity of carbon fibre suspension and its application for fibre length measurement

Perspectives on shear banding in complex fluids

Anomalous shear banding: multidimensional dynamics under fluctuating slip conditions

Optimization of the vane geometry : Applications to complex fluids

Numerical simulation of a shear-thinning fluid through packed spheres

Droplet deformation of a strongly shear thinning dense suspension of polymeric micelles

Shear localisation in stirred yoghurt

The W-criterion for the onset of shear banding in complex fluids

Similar Documents

Prediction of onset of Taylor-Couette instability for shear-thinning fluids

Phenomenology and physical origin of shear localization and shear banding in complex fluids

The shear viscosity of carbon fibre suspension and its application for fibre length measurement

Perspectives on shear banding in complex fluids

Anomalous shear banding: multidimensional dynamics under fluctuating slip conditions

Optimization of the vane geometry : Applications to complex fluids

Numerical simulation of a shear-thinning fluid through packed spheres

Droplet deformation of a strongly shear thinning dense suspension of polymeric micelles

Shear localisation in stirred yoghurt

The W-criterion for the onset of shear banding in complex fluids