Analytical solutions for fully developed laminar flow of some viscoelastic liquids with a Newtonian solvent contribution

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Cruz, DOA (Author) Other; F. T. Pinho (Author) Other; Oliveira, PJ (Author) Other

Journal

Title: Journal of Non-Newtonian Fluid Mechanics

Vol. 132

Pages: 28-35

ISSN: 0377-0257

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 48 Citations

Scopus - 64 Citations

Other information

Authenticus ID: P-000-01D

DOI: 10.1016/j.jnnfm.2005.08.013

Abstract (EN): We present analytical solutions for fully developed pipe and channel flows of two viscoelastic fluids possessing a Newtonian solvent, where the polymer contribution is either described by the Phan-Thien-Tanner (PTT) or FENE-P models. We derive in detail the pipe flow solution for the PTT fluid, and present the final solutions for the remaining three cases. This constitutes an important addition to existing results where the presence of a solvent with Newtonian characteristics has been consistently overlooked, as it posed considerable difficulties to the task of obtaining a closed form solution. In addition, interesting aspects of the solutions are discussed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8