AIChE Journal · 2019 · 65 citations · 34 references
EngineeringChemical EngineeringComputational Fluid DynamicsFluid DynamicsFluid MechanicsDispersed FlowFlow BehaviorPacked Bed FlowPacked Bed ReactorsViscous FlowDimensionless NumbersFibersFilm ThicknessLiquid Film BehaviorLiquid Film ThicknessLiquid FlowMass Transfer In Packed BedsPacked-bed Reactor Hydrodynamics
Abstract Liquid flow behaviors in the packing zone of a rotating packed bed reactor significantly affect the mass transfer performance. However, the interaction between the rotating packing and liquid is still not clear, due to packing's complex structure. In this work, liquid jet impaction on a rotating single‐layer wire mesh was investigated to clarify the interaction and liquid flow behaviors after the impaction was observed and analyzed by visualization and simulation methods. Visual experiments showed that the interaction could be divided into the shearing action generated by vertical fibers and carrying action generated by horizontal fibers of wire mesh. A dimensionless number β was introduced as a criterion to evaluate the influence of these actions on the liquid dispersion. Simulation results agreed well with the experimental results of liquid dispersion. Dynamic liquid film behaviors on the fiber surface were further simulated and the average film thickness was 21–32 μm.
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Two-equation eddy-viscosity turbulence models for engineering applications
Florian Menter · AIAA Journal · 1994 · 20.7K citations