A variational principle in dissipative systems

Saturday, November 6, 2004 - 11:15am - 12:00pm
EE/CS 3-180
Masao Doi (University of Tokyo)
In constructing kinetic equations which describe the motion of complex fluids (fluid mixtures, liquid crystals, polymer solutions and gels), thermodynamics gives us an important guide. The way how one uses the principle of thermodynamics, however, seems to have various versions. In this talk, I would like to discuss a way which I found useful. It is based on Rayleigh's extension of the Lagrangean mechanics to dissipative systems. In this talk, I explain the method and discuss its applications to several systems (two fluid model, electrolyte solutions, gels etc).