Viscoelastic fluid behavior in annulus using Giesekus model

✍ Scribed by Mehdi Moayed Mohseni; Fariborz Rashidi

• Book ID: 104024304
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 332 KB
• Volume: 165
• Category: Article
• ISSN: 0377-0257
• DOI: 10.1016/j.jnnfm.2010.07.012

✦ Synopsis

An analytical solution is derived for the steady state, laminar, axial, fully developed flow of a viscoelastic fluid obeying the Giesekus model without any retardation time in a concentric annulus.

An approximation is used for the estimation of radial normal stress. The influence of Deborah number (De) and the mobility factor (˛) on the velocity profile, axial pressure gradient are investigated and results show strong effects of mobility factor and Deborah number on above parameters.