The influence of the ratio of the diameters of the vortexes and mixing chambers of a vortex ejector on its own characteristics

Abstract

The paper reports on the results of experimental studies of the operation of the vortex ejector. In particular, different geometrical options for a vortex chamber of the ejector are studied. In order to carry out experimental research, six plastic models of the vortex chamber differing in their diameter have been made. The experimental results show that the most effective operation corresponds to the ratio of the diameters of the vortex and mixing chambers equal to dvc/dmc = 2. This provides the highest values of the ejection coefficient and the lowest values of the relative pressure at the passive nozzle. Both, increase and decrease in dvc/dmc leads to the reduction of these parameters and overall efficiency of the ejector.The paper reports on the results of experimental studies of the operation of the vortex ejector. In particular, different geometrical options for a vortex chamber of the ejector are studied. In order to carry out experimental research, six plastic models of the vortex chamber differing in their diameter have been made. The experimental results show that the most effective operation corresponds to the ratio of the diameters of the vortex and mixing chambers equal to dvc/dmc = 2. This provides the highest values of the ejection coefficient and the lowest values of the relative pressure at the passive nozzle. Both, increase and decrease in dvc/dmc leads to the reduction of these parameters and overall efficiency of the ejector.