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Two-Phase Flow Modeling

We have developed two-phase modeling capability using Eulerian-Eulerian multi-phase model and DEM model for gas-solid dense phase flow. This modeling approach is unsteady-state and is much time consuming when compared to diluted gas-solid flow.

Our two-phase model has been applied to the following processes:

  • Circulating Fluid Bed combustion, incorporated with heat transfer and multiple gas-solid reactions

  • Dense phase solid conveying systems of material pneumatic conveying industry

  • Aeration system design of a full-scale silo

  • Material calcining in a rotating kiln

CFD predicted dynamic particle movement in a CFB boiler using two-phase modeling. The model clearly shows the formation of a bubble and moving upward in the boiler.

CFD predicted volume fraction of limestone particle flow in a rotating kiln using two-phase flow modeling.

CFD predicted particle injection and movement in an upward conveying riser using CFD-DEM.

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