The general theory, characteristics and design parameters of a water jet ejectors were investigated with analytical and experimental studies. It was found that the mixer area ratio, mixer pressure ratio and mixer wall pressure highly affect the ejector performance. The ejector governing equations were studied with the ejector performance characteristics. Many researchers have worked in the literature on the design and performance prediction methodology of the water jet ejectors for different industrial applications.

The performance of the water jet ejectors is significantly related to their design parameters. These devices work effectively in various areas, such as shipbuilding industries, power stations and fire extinguishers units. Water jet ejectors perform in a wide range of industrial fields with their simplicity in design, functionally in applications and low maintenance requirement in operations. It is achieved that the suction capacity of the manufactured water jet ejector with the improved design (D2) is suddenly increased from 52.05 m 3/h to 103.4 m 3/h. The numerical results have been validated using the experimental results. The suction capacities of the produced bronze water jet ejectors have been investigated experimentally. The established designs were produced as two novel bronze water jet ejectors. The effect of design parameters on the suction capacity of the water jet ejectors is unveiled through numerical and experimental analysis. The suction capacity of the ejector has been determined through the iterative numerical analysis for the selected geometrical parameters under the applied design conditions. The generated design parameters have been analyzed by using SolidWorks flow analysis and optimization software.

Two new water jet ejector designs (D1 and D2) are built to improve the suction capacity of the initial water jet ejector (D0). The suction capacity of the existing ejector is investigated via numerical and experimental analysis. Design ranges determined in the dimensionless study have been used in the improvement of the suction capacity of an existing ejector.

In this study, it is found that optimum design intervals have been determined by using the Response Surface Method (RSM). The dimensionless geometrical parameters effects ejector suction capacity. Water jet ejectors are the silent pumping fluid devices which doesn’t have any rotating parts in functional industrial applications.

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