Thumbnail
Access Restriction
Open

Author Ladd, A. J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ PHYSICS ♦ SUSPENSIONS ♦ SCREENING ♦ HYDRODYNAMICS ♦ CORRELATION FUNCTIONS ♦ SIMULATION ♦ SPHERES ♦ MICROSTRUCTURE ♦ VELOCITY ♦ FLUCTUATIONS
Abstract It has been suggested [D. L. Koch and E. S. G. Shaqfeh, J. Fluid Mech. {bold 224}, 275 (1991)] that the long-range hydrodynamic interactions in sedimenting suspensions of non-Brownian spheres are screened by changes in the pair correlation function. However, a large-scale numerical simulation, using more than 32000 spheres with full many-body hydrodynamic interactions, has found no evidence of the predicted changes in suspension microstructure. The absence of hydrodynamic screening in the simulations is shown to lead to divergent velocity fluctuations, in disagreement with recent experimental results [H. Nicolai and E. Guazzelli, Phys. Fluids {bold 7}, 3 (1995)]. {copyright} {ital 1996 The American Physical Society.}
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-02-01
Publisher Department Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publisher Place United States
Journal Physical Review Letters
Volume Number 76
Issue Number 8
Organization Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)


Open content in new tab

   Open content in new tab