Effect of bluff internals on the hydrodynamics and lateral gas mixing was studied in a 0.186m ID
high-density riser. With the bluff internals, the extremely non-uniform radial profiles of solid fraction and particle ...Effect of bluff internals on the hydrodynamics and lateral gas mixing was studied in a 0.186m ID
high-density riser. With the bluff internals, the extremely non-uniform radial profiles of solid fraction and particle
velocity become flat and the dense downflow layer near the wall disappears, indicating the significant enhancement
of solid turbulence introduced by the internals. The fluctuation velocity and solid fraction transient signal analysis
indicates a significant increase in fluctuation intensity near the wall region. The length influenced by the internals
on the flow structure is about 1 meter. The lateral gas dispersion coefficient increases significantly as the bluff
internals exist in the riser.展开更多
文摘Effect of bluff internals on the hydrodynamics and lateral gas mixing was studied in a 0.186m ID
high-density riser. With the bluff internals, the extremely non-uniform radial profiles of solid fraction and particle
velocity become flat and the dense downflow layer near the wall disappears, indicating the significant enhancement
of solid turbulence introduced by the internals. The fluctuation velocity and solid fraction transient signal analysis
indicates a significant increase in fluctuation intensity near the wall region. The length influenced by the internals
on the flow structure is about 1 meter. The lateral gas dispersion coefficient increases significantly as the bluff
internals exist in the riser.