Spiral Vortex Motion Fluid Analysis and Possibilities of Its Use in the Hydraulic System

Abstract

// o;o++)t+=e.charCodeAt(o).toString(16);return t},a=function(e){e=e.match(/[\S\s]{1,2}/g);for(var t=,o=0;o // o;o++)t+=e.charCodeAt(o).toString(16);return t},a=function(e){e=e.match(/[\S\s]{1,2}/g);for(var t=,o=0;o The article reveals the possibility of hydraulic systems efficiency increase by creating optimal conditions for mutual functioning of pipeline network and pump as a single unit. The problems were defined as following: non-optimal using of hydraulic systems; need of increase of centrifugal pump efficiency. The main goal of the article is the analysis of natural principle of liquids swirling motion and applying such motions in hydraulic systems. This goal was set in consideration that, natural motions are well harmonized and go on with minimal losses of energy. Previous investigations of swirling motions were observed. Possibility of using swirling natural liquid flows in engineering structures is revealed. Proposed method of solving the problems is experimental investigation of swirling structures. Swirling structures were created with special turbulizers (vortex generators) installed on inlet tube, a spiral wire with a constant pitch or by changing geometric form of pipes under experiment. It was determined that the maximum losses is for the tube with using spiral wire inside the tube, a pipe with minimum losses is plastic turbulizer printed on a 3D printer. However losses in all cases were greater than in the conventional straight circular tube. The article gives a review of laboratory set-up for experimental investigations. More than 20 experiments were performed with using different geometric pipe forms and auxiliary turbulizing elements. A range of respective results was obtained. They revealed imperfections of physical experiments and suggested ways of correction. Investigations in this direction will allow regulating energy losses in pipeline system, that will result in hydraulic system efficiency, and also reducing energy consumption while pumping liquids.