The extraction of the water-air phase through a single filtration hole

Abstract

Abstract The conducted studies allowed us to establish that the shape of the filtration holes should be subject to the above patterns. The second - it was established on the basis of the analysis of real Reynolds numbers and visual observations that the water extraction mode in the zone of action of the peristaltic wave of compaction is divided into three stages: a) laminar spin mode; b) turbulent spin mode; c) intermittent spin mode. The first stage of water extraction is determined by the classical two-dimensional (coordinate X and time t) water movement in a porous medium. Usually, this task is complicated by the presence of a water and gas phase in the squeezed stream. The first phase ends with the turbulent motion of the liquid-air phase. Turbulence as the second stage of the extraction of the water-air phase is determined by the dependence of the critical Reynolds number on the action of complex technological factors of hyper-compaction. This includes vibro-shock of peristaltic pressure and shear deformations from the reciprocating movements of the moldable mixture. The second stage ends with the transition to intermittent extraction of residual water. The third stage of extraction is characterized by the ultimate level of compaction (P max ) by breaking continuous filter channels and the transition to a submicrocellular structure of the compacted mixture [1, 2, 3, 4].