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Simulations Of Bubble Column Reactors Using A Volume Of Fluid Approach: Effect Of Air Distributor, Abid Akhtar
Simulations Of Bubble Column Reactors Using A Volume Of Fluid Approach: Effect Of Air Distributor, Abid Akhtar
Abid Akhtar Mr
Two- and three-dimensional numerical simulations have been performed on a laboratory scale bubble column reactor using a volume-of-fluid approach. The effect of hole-size and superficial gas velocity on the bubble size distribution and their trajectories has been investigated on a 20 cm diameter and 1 m high cylindrical reactor. All simulations were performed in a transient manner using a FLUENT solver. Surface tension between two phases has been modelled as a body force with a constant value. Turbulence was modelled using the k-(epsilon) turbulence approach. A comparison between simulation predictions and the reported experimental studies has shown a good agreement.
Cfd Simulations For Continuous Flow Of Bubbles Through Gas-Liquid Columns: Application Of Vof Method., Abid Akhtar
Cfd Simulations For Continuous Flow Of Bubbles Through Gas-Liquid Columns: Application Of Vof Method., Abid Akhtar
Abid Akhtar Mr
Hydrodynamics study of a continuous bubble chain rising through liquid column has been performed for laboratory scale bubble column using the volume-of-fluid (VOF) approach. The effect of operating and design parameters on the bubble size distribution and rise trajectory has been investigated for air-water system. For the same distributor, simulation results have indicated the formation of small bubbles at low superficial gas velocity and relatively large bubbles at higher velocities. The increase in the hole-size of distributor has shown similar behaviour. Analysis of bubble trajectories for different superficial gas velocities and distributors has demonstrated an oscillatory behaviour exhibited by small …