CFD-DEM study of mitigation of alternating spout deflection in a spout fluidized bed: A geometry perspective

Alternating spout deflection is a common instability problem in spout-fluidized beds. Geometrical modification to the reactor is a feasible way to mitigate the deflection. In this work, three kinds of geometrical designs are studied to mitigate the alternating spout deflection by the CFD-DEM approach. Design I is to add baffles at the top of two annulus regions. The results demonstrate that this design can significantly reduce the amplitude of...