Analytical solution for fully developed channel and pipe flow of Phan-Thien-Tanner fluids

• Type: Article in International Scientific Journal
• Date: 1999

Authors

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

Journal

Title: Journal of Fluid Mechanics

Vol. 387

Pages: 271-280

ISSN: 0022-1120

Publisher: Cambridge University Press

Indexing

ISI Web of Knowledge - 112 Citations

Scopus - 140 Citations

Other information

Authenticus ID: P-001-4A3

DOI: 10.1017/s002211209900453x

Abstract (EN): Analytical expressions are derived for the velocity vector, the stress components and the viscosity function in fully developed channel and pipe flow of Phan-Thien-Tanner (PTT) fluids; both the linearized and the exponential forms of the PTT equation are considered. The solution shows that the wall shear stress of a PTT fluid is substantially smaller than the corresponding value for a Newtonian or upper-convected Maxwell fluid, with implications for comparing predicted and measured values in a non-dimensional form.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10