HYDRAULIC AND THERMAL DEVELOPMENT OF 2-PHASE GAS-SOLID TURBULENT CONFINED FLOW

Predictions, using a modified version of the single phase GENMIX code, have been carried out in the entrance region of a vertical pipe for gas-solid flows. These predictions compare well with the corresponding available experimental data. The predictions reveal the effect of particle size, loading ratio, and physical properties of the solid phase on the flow and heat transfer characteristics. The hydraulic and thermal development lengths were found to decrease up to a certain critical loading ratio, beyond which they increase. The same trend is noticed for the Nusselt number variation with loading ratio.