Experimental test-bed for studying submerged fluid outflow from pressure distributive pipe-line laid in an unpressured fluid flow

Abstract

To develop an experimental stand for the study of the flooded outflow of liquid from pressure distribution pipelines laid in non-pressure flow, a review of ways to reduce the uneven distribution of liquid from pressure distribution pipelines was carried out. Among them, constructively changing the geometric parameters of the distribution pipelines or exhaust devices, giving the axis of the distribution pipeline an inclination to the horizon or the axis of the exhaust devices tilting relative to the axis of the distribution pipeline, changing the angle of the liquid entering the exhaust devices. In the manufactured experimental stand, there must be support in the hydraulic tray to ensure the flooded outflow of liquid from the outlet devices of the distribution pipeline. The presence of liquid support in the hydraulic tray should ensure a flooded outflow of liquid from the outlet devices of the distribution pipeline, and the absence of support - non-flooded outflow. The walls of the hydraulic tray and the distribution pipeline for studying the kinematic characteristics of the external and internal fluid flows, respectively, in the hydraulic tray and the distribution pipeline, and the liquid jete disconnected from the distribution pipeline must be transparent. The slope of the distribution pipeline can be changed relative to the bottom of the hydraulic tray. This achieves different branching angles of the jets to the free surface of the liquid in the hydraulic tray. Due to the design features of the hydraulic tray, the distribution pipeline should be sequential in structure, and not bifurcated. The method of carrying out a study of the flooded outflow of liquid from a pressure distribution pipeline laid in a non-pressure flow has been clarified. Preliminary results confirm the possibility of regulating the uneven distribution of liquid from the pressure distribution pipeline.