Title: Onsager variational principle and its application in soft matter system
Speaker: Zhou Jiajia (Beihang University)
Venue: Room 324, Building No. 2, Wushan Campus
Time: Sep 29, Saturday, 10:00
In his celebrated paper on the reciprocal relation (Phys. Rev. 37, 405, 1931), Onsager extended Rayleigh’s principle of the least energy dissipation to general irreversible processes. In this talk, I will give a brief introduction to this variational principle, which provides a convenient framework for deriving dynamical equations of non-equilibrium phenomena in soft matter. Three examples will be discussed: (1) capillary filling in a tube. (2) stratification of binary colloidal solution under evaporation. (3) beads-on-string structure formation of viscoelastic filaments. I hope to show that Onsager variational principle can be regarded as a solid general basis for the dynamics of soft matter systems.
Announced by School of Matreials Science and Engineering