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Comparison ofexperimental and simulation results for turbulent gas-solid riser flow

Aldo Benavides (Institutionen för tillämpad mekanik, Strömningslära) ; Berend van Wachem (Institutionen för tillämpad mekanik, Strömningslära) ; John Nijenhuis ; J. Ruud Van Ommen
9th International Conference on Circulating Fluidized Beds, CFB 2008, in Conjunction with the 4th International VGB Workshop on Operating Experience with Fluidized Bed Firing Systems; Hamburg; Germany; 13 May 2008 through 16 May 2008 (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: Eulerian model; Kinetic theory for granular flow; Optical probe; Riser



Denna post skapades 2017-12-27.
CPL Pubid: 254096

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)

Ämnesområden

Teknisk mekanik

Chalmers infrastruktur