Stress jumps predicted by the internal viscosity model with hydrodynamic interaction
作者:
Charles W. Manke,
Michael C. Williams,
期刊:
Journal of Rheology
(AIP Available online 1992)
卷期:
Volume 36,
issue 7
页码: 1261-1274
ISSN:0148-6055
年代: 1992
DOI:10.1122/1.550368
出版商: The Society of Rheology
关键词: Stress jumps;Transient rheological models;Dilute solution rheology;Internal viscosity;SHEAR FLOW;ELONGATION;STRESS DISTRIBUTION;VISCOSITY;DEFORMATION;SOLUTIONS;DILUTE SYSTEMS;POLYMERS;HYDRODYNAMICS;RHEOLOGY;TRANSIENTS
数据来源: AIP
摘要:
Equilibrium‐averaged hydrodynamic interaction is included in the dilute solution Manke–Williams model for stress jumps at the inception of shear and elongational flows due to internal viscosity (IV), which was developed previously for free‐draining chains. As in the free‐draining case, rigorous expressions are used for the IV forces in a multibead chain, and closed form solutions are obtained that show viscosity jumps to be directly dependent on the IV coefficient, but independent of deformation rate. Overall, hydrodynamic interaction is found to enhance the magnitude of stress jumps relative to the free‐draining case.
点击下载:
PDF
(625KB)
返 回