Colloquia 2005
**Steady-state
thermodynamics of shearing viscoelastic fluids**

**A/Professor
Peter Daivis**

RMIT
University

**Date**

4-5 p.m., Thursday,
10 February, 2005

**Location**

School of Physics
Common Room

Room 64 Old Main Building

The University of New South Wales

**Outline**

In
the first part of this talk, I will discuss the recent development of
a thermodynamic description of shearing viscoelastic fluids that is
exact for linear viscoelasticity. Molecular simulation results aimed
at the verification of a Maxwell relation that is postulated for thermodynamic
properties in a non-equilibrium shearing steady state will be discussed,
and an interesting relationship between the first normal stress coefficient
and the relaxation modulus will be described.

In
the second part, I will make several more speculative comments on the
possible extension of this theory to shearing non-linear viscoelastic
fluids, and discuss some of the requirements that such a theory must

satisfy.

*The audience,
including graduate students, are invited to meet the speaker 15 minutes
beforehand over wine and cheese in the Physics Common Room.*

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