Amazing effects of the mesoscopic elasticity of fluids: Application to polymer melts and blood plasma
Year: 2025
Type: conference-paper
Abstract: Elasticity, the ability to respond spontaneously and reversibly to applied stress, is one of the oldest physical properties identified in condensed matter. Long considered as a solid character, it has recently been demonstrated that mesoscopic fluids are also endowed with (shear) elasticity. These new elements indicate that on a small scale, the molecules of the fluid are not dynamically independent but are elastically correlated. As consequence, the mesoscopic fluid is dependent on local potentials and the mechanics of continuous media no longer applies. This property is also revealed in Human Blood plasma when viscoelastic measurements are carried out on full wetting interfacial conditions. In this frame, and since elastic correlations allow mesoscopic liquids to propagate shear waves, we highlight that the emergence of nonequilibrium temperatures generated in the fluid by mechanical stress. New horizons in Rheology are opening up to explore and broaden our knowledge of the properties of fluids.
Source: AIP conference proceedings
DOI: 10.1063/5.0282335
Authors: Laurence Noirez, Ursula Windberger
Language: English
Subfield: Fluid Flow and Transfer Processes
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4411868901