Experimental investigation of a turbulent filtrational flow

摘要: Abstract A filtrational flow in a regular packed bed is arranged so that it allows both direct measurement of the velocity distribution layer and visualization. Detailed diagrams mean velocities turbulence levels, as well one-dimensional spectra longitudinal pulsations, have been obtained using LDA for an optically transparent system glass spheres special immersion system. Reynolds numbers, calculated from sphere diameter minimal cross-section between spheres, are range 1000–20,000. It has established past array jet character. The contact points results local separation, value such separation zone being mainly dependent on method packing. On basis experimental results, generation mechanism arrays presented.