VISCOELASTIC FLOW IN TEARDROP - SHAPED TUBES: TRANSVERSAL FIELD

Conference proceedings article

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Author list: Letelier MF, Siginer DA, Gutierrez S, Arratia P, Gonzalez A

Publisher: AMER SOC MECHANICAL ENGINEERS

Place: NEW YORK

Publication year: 2017

Number of pages: 4

ISBN: 978-0-7918-5061-9

Languages: English-Great Britain (EN-GB)

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Abstract

We present an analytical study of secondary flows in tubes of teardrop shape for a viscoelastic fluid described by the Phan-Thien-Tanner (PPT) model. The analytical development is based on a one-to-one mapping (shape function) to describe the teardrop contour and the expansion of field variables into asymptotic series in terms of the Weissenberg number Wi. Secondary flows and the temperature field are determined solving the hierarchical set of equations resulting from the asymptotic series expansions.

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