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Comparison of experimental and simulation results for turbulent gas-solid riser flow

Aldo Benavides (Institutionen för tillämpad mekanik, Strömningslära) ; Berend van Wachem (Institutionen för tillämpad mekanik) ; John Nijenhuis ; J.R. van Ommen
Circulating Fluidized Bed Technology IX. Proceedings of the 9th International Conference on Circulating Fluidized Beds, CFB-9. May 13-16, 2008. Hamburg, Germany. (2008)
[Konferensbidrag, refereegranskat]

This paper compares measurements of the radial solids concentration in a riser with CFD simulations. An Eulerian model based upon the kinetic theory for granular flow, extended with models describing turbulence modulation and dispersion, is used to treat the particulate phase. Coupling between momentum equations of the gas and particulate phases is taken into account via a mean drag force formulation. Solids distribution profiles over three horizontal planes are measured by the use of optical probes. The pressure drop is used to estimate an average solids concentration profile along the riser. The comparison is reported for a single superficial gas velocity and solids mass flux.

Nyckelord: Riser; Eulerian model; kinetic theory for granular flow; optical probe.

Denna post skapades 2008-12-11. Senast ändrad 2009-10-28.
CPL Pubid: 81154