TY - DATA
T1 - Videos of liquid-solid fluidisation experiments of calcite pellets and glass beads in water
PY - 2019/10/01
AU - Onno Kramer
UR - https://data.4tu.nl/articles/dataset/Videos_of_liquid-solid_fluidisation_experiments_of_calcite_pellets_and_glass_beads_in_water/12681530/1
DO - 10.4121/uuid:1b685d9e-4441-4a53-865c-86622ba49b25
KW - Calcite pellets
KW - Circular sustainable processes
KW - Drag relations
KW - Drinking water treatment
KW - Glass beads
KW - Hydraulic modelling
KW - Liquid-solid fluidisation
KW - Multiphase flow
KW - dissertation
N2 - 20 videos of liquid-solid fluidisation experiments in a university laboratory. You see a 5.7 cm PVC column where tap water is pumped in an upward direction causing particles to elevate into a fluidised state. Particles are calcite grains obtained from a full-scale drinking water softening reactor or perfectly round monodispersed glass beads. The reason to show these videos is to demonstrate that homogeneous flow regime not always occurs whilst this is often assumed regarding liquid-solid fluidisation systems. The viewer can observe open voids of water between the particles and water which choose a path of least resistance through the particle bed. Besides laminar-turbulent regime also homogeneous-heterogeneous distinction is relevant. These observations brought us to revise the standard drag relations used to predict the bed porosity.
ER -