Nihon Reoroji Gakkaishi
Online ISSN : 2186-4586
Print ISSN : 0387-1533
ISSN-L : 0387-1533
Study for Stratified Laminar Flow of Viscoelastic Fluids
Hiroshi YAMAGUCHITakeshi YASUMOTO
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1999 Volume 27 Issue 3 Pages 141-147

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Abstract

A numerical work is conducted in order to verify the phenomena which are observed in experiments for a Y-type junction of two laminar flow layers of a viscoelastic and Newtonian fluid with a relatively high-speed stratification, where the inertia of flows can not be neglected. A numerical technique based on Simplified Arbitrary Lagrangian-Eulerian (SALE) method is used for simulating a behavior of time-dependent interfacial stratified fluids. In comparison with experimental results, it is revealed that the present scheme predicts the wavy interfacial surface phenomena that can occur in the stratified flow geometry with a viscoelastic fluid at a specific combination of the Reynolds number and the Deborah number.

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© 1999 The Society of Rheology, Japan
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