Abstract
This paper presents a scientific development aimed at improving the efficiency of turbomachines through the joint use of rotary-vane and vortex workflows. In the well-known Euler turbine, the rotor flow channels represent a set of curved pipes. The authors propose to consider in more detail the possibilities of using such rotating pipes in the implementation of an ejection (vortex) workflow. A hybrid pump was considered with the conclusion that its workflow can be described using two Euler equations. The results of computer simulation indicate that hybrid turbomachines are promising. The use of additive technology allowed the creation of micromodels of the Euler turbine with various rotor designs. Laboratory hydraulic tests showed that the liquid inlet to the rotor is possible in pulse mode. Laboratory tests of micromodels using compressed air showed that gas (or liquid) motion through curved pipes could be carried out from the rotor periphery to its center and then back, albeit through another curved pipe. The research results demonstrated that the scientific and technical potential of the Euler turbine is not yet fully unlocked, and research in this direction should continue. The study results are applicable in various industries including the energyeconomy, robotics, aviation, and water transport industries.
Highlights
Improving the energy efficiency of production processes is presently one of the most urgent tasks
A study of complex gas-dynamic and hydrodynamic processes taking place in the channels of hybrid turbomachines is impossible without computer simulation
We studied the features of gas and liquid flow in the channels of turbines, made by analogy with the Euler turbine
Summary
Improving the energy efficiency of production processes is presently one of the most urgent tasks. The advent of additive technologies has opened up new opportunities for technology development and the creation of promising turbomachinery. Specialists at Gubkin University proposed a new direction of scientific and design activities involving mesh structures to form flow channels in the turbomachine rotor [1,2]. New approaches for creating hybrid machines and developing hybrid workflows to increase the efficiency of pumps, compressors, turbines, and ejectors for various purposes are proposed. The results of practical use of mesh channels are known in the development of lattice wings [3,4], heat exchangers [5,6,7], and ejectors for various purposes [8,9].
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