Effects of container walls on the velocity fluctuations of sedimenting spheres
1Chemical Engineering Department, University of Florida, Gainesville, Florida 32611-6005, USA. ladd@che.ufl.edu
Abstract:
Simulations describing the settling of suspensions of solid particles bounded by a rigid container are presented. Results are compared with previous simulations of homogeneous suspensions with periodic boundary conditions. Velocity fluctuations in vertically inhomogeneous suspensions are found to saturate under conditions similar to those found in laboratory experiments, while in vertically homogeneous suspensions, with or without side walls, the velocity fluctuations diverge. A mechanism for the establishment of a correlation length in sedimenting suspensions is proposed.
Related Concept Videos
Viscosity
The SI unit of viscosity is...
Deriving the Speed of Sound in a Liquid
The speed of sound in fluids can be derived by considering a mechanical wave propagating...
Stokes' Law
The expression for the force on a solid spherical object in a fluid is called Stokes' law. Stokes' law is valid only for low Reynolds...
Principle of Linear Impulse and Momentum for a Single Particle: Problem Solving
Steady, Laminar Flow in Circular Tubes
Boundary Layer Characteristics


