Hydrodynamic interactions and transport coefficients in a suspension of spherical particles

Conference · Thu Feb 01 04:00:00 EST 1990

DOI:https://doi.org/10.1007/978-1-4684-1339-7_9· OSTI ID:7006890

Ladd, A. J.C.

Particulate suspensions of solids in liquids can be understood in terms of the microstructure of the solid phase by using the well-known techniques of numerical statistical mechanics. The major problem with such an approach has been the incorporation of the long-range, many-body hydrodynamic forces between the suspended particles. In this paper I describe a general computational method for calculating the forces and torques exerted by slowly moving spheres suspended in an incompressible fluid. The method can be used to determine bulk constitutive properties of solid-fluid suspensions or particulate porous media. Numerical results for the sedimentation velocity and high frequency viscosity of monodisperse suspensions have been obtained, and the results are shown to compare very well with experimental measurement. 18 refs., 1 fig., 2 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7006890
• Report Number(s): UCRL-102966; CONF-8908158--3; ON: DE90008301
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
640410 -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BOUNDARY CONDITIONS
DIFFUSION
DISPERSIONS
FLUID FLOW
FLUID MECHANICS
FORECASTING
FREQUENCY ANALYSIS
HOMOGENEOUS MIXTURES
HYDRODYNAMICS
INTERACTIONS
MATHEMATICAL MODELS
MECHANICS
MICROSPHERES
MIXTURES
NONLINEAR PROBLEMS
PARTICLES
PARTICULATES
PERMEABILITY
RANDOMNESS
SEDIMENTS
STRESS ANALYSIS
SURFACE PROPERTIES
SUSPENSIONS
TESTING
TRANSPORT
VALIDATION
VARIATIONS
VELOCITY
VISCOSITY