Charged network constitutive equation
| Autor: | D. De Kee, C.F. Chan Man Fong |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Physics
Applied Mathematics Mechanical Engineering General Chemical Engineering Constitutive equation Coordinate system Thermodynamics Mechanics Condensed Matter Physics Viscoelasticity Polyelectrolyte Physics::Fluid Dynamics Formalism (philosophy of mathematics) symbols.namesake Helmholtz free energy Shear stress symbols General Materials Science Oscillatory flow |
| Zdroj: | Journal of Non-Newtonian Fluid Mechanics. 57:39-47 |
| ISSN: | 0377-0257 |
| DOI: | 10.1016/0377-0257(94)01294-r |
| Popis: | We have considered a charged network theory as a model of polyelectrolytes. The charges are placed at the junctions. The formalism of a convected coordinate system is used to deduce the constitutive equation via the Helmholtz free energy. Steady viscometric and elongational flows as well as small-amplitude oscillatory flows are examined. The predicted shear stress is compared with experimental data and good agreement is achieved. The relation between elongational viscosity and viscometric functions is deduced. In small-amplitude oscillatory flow one recovers linear viscoelasticity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect