TY  - JOUR
AU  - Varghese, Anoop
AU  - Huang, Chien-Cheng
AU  - Winkler, Roland G.
AU  - Gompper, Gerhard
TI  - Hydrodynamic correlations in shear flow: Multiparticle-collision-dynamics simulation study
JO  - Physical review / E
VL  - 92
IS  - 5
SN  - 1539-3755
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-06751
SP  - 053002
PY  - 2015
AB  - The nonequilibrium hydrodynamic correlations of a multiparticle-collision-dynamics (MPC) fluid in shear flow are studied by analytical calculations and simulations. The Navier-Stokes equations for a MPC fluid are linearized about the shear flow and the hydrodynamic modes are evaluated as an expansion in the wave vector. The shear-rate dependence and anisotropy of the transverse and longitudinal velocity correlations are analyzed. We demonstrate that hydrodynamic correlations in shear flow are anisotropic, specifically, the two transverse modes are no longer identical. In addition, our simulations reveal the directional dependence of the frequency and attenuation of the longitudinal velocity correlation function. Furthermore, the velocity autocorrelation functions of a tagged fluid particle in shear flow are determined. The simulation results for various hydrodynamic correlations agree very well with the theoretical predictions.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000364022300008
C6  - pmid:26651774
DO  - DOI:10.1103/PhysRevE.92.053002
UR  - https://juser.fz-juelich.de/record/276290
ER  -