Study of Liquid Flow in Channels of Various Configurations

Abstract

The article addresses the issue of cavitation flow in a narrowing channel. The study employs the Efros scheme, which effectively captures the primary flow characteristics in this type of section. In the Efros scheme, the boundaries of the swirling flow are rotated by 180°, leading to the formation of a reverse flow that evacuates the turbulent part of the liquid from the main flow. The critical point D is located downstream of the curve's end. The article outlines the mathematical formulation for fluid motion in a narrowing channel and constructs a fusion of the integral potential function and the Zhukovsky function. Key flow parameters and cavity sizes at various cross-sections of the channel are determined. To enhance and stabilize hydraulic conditions near the water intake of pumping stations, and to address drainage or regulation issues, the study recommends installing a guiding surface along the cavity boundary as defined by the authors. The research also establishes the hydrodynamic flow patterns, the boundaries of transit flow, and the locations of stagnant zones in the narrowing channel.