Session L36 - General Poster Session II.
POSTER session, Wednesday morning, March 22
Exhibit Hall, MCC
In liquids, temperature gradients change the large scale fluctuations due to mode coupling. For scales larger than the mode coupling radius, nonequilibrium fluctuations are stronger than equilibrium ones. Near the critical temperature Tc the mode coupling radius decreases with decreasing T-Tc, while the equilibrium correlation radius increases, and at some temperature Tcc, both characteristic lengths coincide. At Tcc>T>Tc, the fluctuations at large scales in the critical range change, the temperature gradient becomes a new relevant critical parameter; the correlation radius and the mode coupling radius as functions of this parameter yield new scaling laws. Suported by NASA Grant NAG3-1932