Abstract
The apparent elongational viscosity of concentrated polymer solutions was measured using a spinline rheometer; 0.1wt% and 1.0wt% solutions of polyacrylamide (PAA) showed a remarkable stretch-thickening property in elongational viscosity. Furthermore, numerical simulation of the elongational flow in the spinline rheometer was carried out using the modified Giesekus model. The apparent elongational viscosity was examined for various values of material constants in the modified Giesekus model including the values for the solutions of PAA and compared with the experimental results. It was found that the gravity force significantly affected the flow in the spinline and the apparent elongational viscosity in the simulation of the solutions of PAA.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
