4th International workshop on nonequilibrium thermodynamics and complex fluids

	IWNET 2006	4th International workshop on nonequilibrium thermodynamics and complex fluids 3-7 september 2006, Rhodes, Greece

Home Scope Location Speakers Program Abstracts Author index Organizing Committee Scientific Committee Venue & Accomodation Registration News Contact		INVITED TALK Session: 4 Complex fluid deformation and rheology: Theories and thermodynamic relationships (scheduled: Tuesday, 08:00 ) Dynamic van der Waals theory A. Onuki Physics Department, Kyoto University, Japan We present a dynamic van der Waals theory including gradient entropy and energy. We introduce the temperature as a functional of the number density and the energy density. Our model is useful to study phase separation when the temperature varies in space. As an example, we show that if heat flow is applied to liquid suspending as droplet at zero gravity, a convective flow occurs such that the temperature gradient within the droplet nearly vanishes. As the heat flux is increased, the droplet becomes attached to the heated boundary that is wetted by liquid in equilibrium. In one case corresponding to partial wetting by gas, an apparent contact angle can be defined. In the other case with larger heat flux, the droplet completely wets the heated boundary expelling liquid. As another example, we study wetting dynamics with evaporation and condensation. © IWNET 2006 [1] A. Onuki, Phys. Rev. Lett. 94 (2005), 054501.

		© and Kleanthi for IWNET 2006