Designing Mesh Turbomachinery with the Development of Euler’s Ideas and Investigating Flow Distribution Characteristics

Abstract

This research discusses developing an Euler turbine-based hybrid mesh turbomachinery. Within the framework of mechanical engineering science, turbomachinery classification and a novel method for mesh turbomachinery design were considered. In such a turbomachine, large blades are replaced by a set of smaller blades, which are interconnected to form flow channels in a mesh structure. Previous studies (and reasoning within the framework of inductive and deductive logic) showed that the jet mesh control system allows for operation with several flows simultaneously and provides a pulsed flow regime in flow channels. This provides new opportunities for expanding the control range and reducing the thermal load on the turbomachine blades. The novel method for performance evaluation was confirmed by the calculation: the possibility of implementing pulsed cooling of blades periodically washed by a hot working gas flow (at a temperature of 1000°C) and a cold gas flow (at a temperature of 20°C) was shown. The temperature of the blade walls remained 490–525°C. New results of ongoing research are focused on creating multi-mode turbomachinery that operates in complicated conditions, e.g., in offshore gas fields. Gas energy is lost and dissipated in the throttle at the mouth of each high-pressure well. Within the framework of ongoing research, the environmentally friendly net reservoir energy of high-pressure well gas should be rationally used for operating a booster compressor station. Here, the energy consumption from an external power source can be reduced by 50%, according to preliminary estimates. Doi: 10.28991/CEJ-2022-08-11-017 Full Text: PDF

Solving Innovative Problems of Thrust Vector Control Based on Euler's Scientific Legacy

“…The authors used the well-known methodology [60] with an interdisciplinary approach in research and design [1,2,5], always considering a set of many processes and conditions:  Vane and vortex workflows;  Pumping (compressor) and turbine workflows;  Processes of coalescence and dispersion, cavitation in liquid and gas-liquid mixture, and separation in multiphase media;…”

“…The presented paper aims to discuss the issues of variants of fluidics development, including within the framework of Euler's ideas. The authors plan to use their scientific background [1,2,5] to achieve this goal. When considering the methodology, it is possible to assume the necessity of using an additional tool in the form of a transdisciplinary approach, which complements disciplinary and interdisciplinary approaches.…”

“…The scientific research performed in 2021 and 2022 [1,2,5] prepared the scientific groundwork for fluidics. This scientific groundwork, in 2023, made it possible to raise the question of the possibility of forming a new scientific direction related to the use of ejection processes along with thrust vector control systems in extreme operating conditions within the complete geometric sphere (when the thrust vector can deflect by an angle from +180 o to -180 o ).…”

“…Today, one of the most urgent problems at the global level is reducing energy costs in production processes, including hydrocarbon production. Scientists from the Gubkin Russian State University of Oil and Gas conduct scientific research aimed at creating promising jet devices and turbomachines [1,2], in which the flow channels have a mesh structure. In conventional understanding, a mesh represents a larger geometric area with smaller discrete cells.…”

“…The works of Stephen Hall [3,4] influenced the creative design approach [3,4]. For the first time, extreme conditions of liquid and gas flow through a nozzle equipped with a control system for the velocity vector (thrust vector) were considered in the control range for the velocity vector angle (thrust vector) from +180 o to -180 o within the geometric sphere [1,2,5]. Along with this, the question arose about the need to train designers with the choice of scientific directions for further development of applied research with the development of advanced technology.…”