Applied Rheology: Publications
You have network access to this resource: olauk528 [1638]
Franz X. Tanner, Abdallah A. Al-Habahbeh, Kathleen A. Feigl, Samsun Nahar, Shaik A. K. Jeelani, William R. Case, Erich J. Windhab
Numerical and Experimental Investigation of a Non-Newtonian Flow in a Collapsed Elastic Tube

Appl. Rheol. 22:6 (2012) 63910 (8 pages)

Abstract: Simulations are performed to investigate the flow of a shear-thinning, non-Newtonian fluid in a collapsed elastic tube and comparisons are made with experimental data. The fluid is modeled by means of the Bird- Carreau viscosity law. The computational domain of the deformed tube is constructed from data obtained via computer tomography imaging. Comparison of the computed velocity fields with the ultrasound Doppler velocity profile measurements show good agreement, as does the adjusted pressure drop along the tube.s axis. Analysis of the shear rates show that the shear-thinning effect of the fluid becomes relevant in the crosssections with the biggest deformation. In fact, the maximum shear rate is about a factor of thirty larger than its corresponding maximum value in the undeformed tube, and the viscosity is reduced by a factor of two. The effect of the shear-thinning behavior has also been compared with identical simulations carried out for a Newtonian fluid. © 2012 Applied Rheology.

DOI 10.3933/ApplRheol-22-63910

-- full text PDF available for subscribers --

-- open access PDF extract available for non-subscribers --


You have no password-free access to Applied Rheology Online. If you are a subscriber, enter login details below. For password-free access, we need your IP address. Sample manuscripts for free download can be found here

download to disk (some browsers prefer this option)
login name
password

Purchase this article for 20 € ?

Forgotten your login details? Send an email with subject "AR login" to login@appliedrheology.org


Appl Rheol 22 (2012) issues:

           


© Applied Rheology 2018