Paper Number
DP5                         My Program 

Session
Dense Particulate Systems

Title
The complex rheology of fluidized beds made simple

Presentation Date and Time
October 14, 2024 (Monday) 2:50

Track / Room
Track 3 / Waterloo 5

Authors (Click on name to view author profile)

1. Kranz, Till (University of Cologne)
2. Sperl, Matthias (German Aerospace Center DLR)
3. Coquand, Olivier (University of Perpignan, LAMPS)

Author and Affiliation Lines (in printed abstract book)
Till Kranz¹, Matthias Sperl² and Olivier Coquand^3
1University of Cologne, Cologne, Germany; ²German Aerospace Center DLR, Cologne, Germany; ³LAMPS, University of Perpignan, Perpignan, France

Speaker / Presenter 
Kranz, Till

Keywords
theoretical methods; dense systems; non-Newtonian fluids; particualte systems; suspensions

Text of Abstract
The rheology of fluidized beds is surprisingly rich, including Newtonian, shear thinning, as well as shear thickening regimes. We will show how the occurrence and the cross overs between these regimes can be understood in terms of simple time scales. We will also provide a derivation of the mu-I-rheology, well-known to apply to purely shear driven particle flows and show how it extends beyond the corresponding Bagnold regime.