Anomalous Pressure in Fluctuating Shear Flow

Details Anomalous Pressure in Fluctuating Shear Flow Anomalous Pressure in Fluctuating Shear Flow

2002-11-15

arxiv.org/abs/cond-mat/0211304v2

Physics

Condensed Matter

Statistical Mechanics

Breakdown of the intensivity of pressure is emphasized. Fig.1 and references added; accepted for publication as a Rapid Commun

Scientific paper

10.1103/PhysRevE.67.065302

We investigate how the pressure in fluctuating shear flow depends on the shear rate $S$ and on the system size $L$ by studying fluctuating hydrodynamics under shear conditions. We derive anomalous forms of the pressure for two limiting values of the dimensionless parameter $\lambda=SL^2/\nu$, where $\nu$ is the kinematic viscosity. In the case $\lambda \ll 1$, the pressure is not an intensive quantity because of the influence of the long-range spatial correlations of momentum fluctuations. In the other limit $\lambda \gg 1$, the long-range correlations are suppressed at large distances, and the pressure is intensive. In this case, however, there is the interesting effect that the non-equilibrium correction to the pressure is proportional to $S^{3/2}$, which was previously obtained with the projection operator method [K. Kawasaki and J. D. Gunton, Phys. Rev. {\bf A 8}, 2048, (1973)].

Affiliated with

Also associated with

No associations

Rating

Anomalous Pressure in Fluctuating Shear Flow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Anomalous Pressure in Fluctuating Shear Flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous Pressure in Fluctuating Shear Flow will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-629386