Analytical and numerical studies for slip flows of a generalised Phan-Thien-Tanner fluid

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Ribau, AM (Author) Other; Ferras, LL (Author) FEUP; Morgado, ML (Author) Other; Rebelo, M (Author) Other; Afonso, AM (Author) FEUP

Journal

Title: ZAMM - Zeitschrift fur Angewandte Mathematik und Mechanik

Vol. 100

ISSN: 0044-2267

Publisher: Wiley

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 6 Citations

Associated Projects

MOLDPRO - Aproximações multi-escala para moldação por injeção de materiais plásticos

Other information

Authenticus ID: P-00R-NFY

DOI: 10.1002/zamm.201900183

Abstract (EN): This work presents analytical and numerical studies for pure Couette and combined Poiseuille-Couette flows under slip. The fluid behaviour is described by the recently proposed viscoelastic model, known as the generalised simplified Phan-Thien-Tanner constitutive equation, that considers the Mittag-Leffler function instead of the classical linear and exponential functions of the trace of the stress tensor, and provides one or two new fitting constants in order to achieve additional fitting flexibility. The solutions derived in this work allow a better understanding of the model and its influence on the slippery behaviour of some complex fluids, contributing in this way to improve the modeling of complex fluids.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11