Secondary Flows of Viscoelastic Fluids in Tubes

Journal article

Authors / Editors

Siginer, Dennis

Research Areas

ENGINEERING AND TECHNOLOGY (Frascati classification)

Publication Details

Subtitle: Secondary Flows of Viscoelastic Fluids in Tubes

Author list: Siginer, Dennis

Publisher: Elsevier

Publication year: 2002

Journal: Journal of Fluids and Structures (0889-9746)

Volume number: 9

Start page: 261

End page: 264

Number of pages: 4

ISSN: 0889-9746

URL: https://biust.pure.elsevier.com

Languages: English-United States (EN-US)

View on publisher site

Abstract

The transversal field in straight pipes is due to nascent second normal stress differences when the contour of the flow domain starts deviating slightly from the circular. In general particles cannot follow straight pathlines in the pressure gradient driven flow of a viscoelastic fluid in a conduit with a cross-section other than circular except when the apparent viscosity and the second normal stress function satisfy certain relationships independently of any constitutive assumptions.

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