Development and Prototyping of Jet Systems for Advanced Turbomachinery with Mesh Rotor

Abstract

This article presents the research results that aim to develop promising mesh turbomachines equipped with jet control systems. The turbomachines operating in difficult conditions in oil and gas production are mainly considered. At the same time, some research results can be used in other production branches, including power engineering and transport. Three-dimensional models for computer simulation of net turbines and jet control systems were developed. Prototypes and micromodels were created to test the performance of mesh turbines and jet control systems using additive technologies. A methodological approach is proposed to create a classification of jet control systems considering their design and technological features. In the course of numerical experiments, the extreme conditions of fluid and gas outflow through a nozzle equipped with a velocity vector control system, in the control range of adjustment of the velocity vector deflection angle from + 90o to -90o within a geometric hemisphere, have been considered for the first time. It was also shown that when using a dual-channel nozzle, there are possibilities to adjust the velocity vector angle (thrust vector) in the range of + 180o to -180owithin the geometric sphere. Compared with the known variants, the control range of the velocity vector angle is increased by nine times. These calculated data are presented in addition to the previously published results of physical laboratory experiments. Preliminary results of numerical experiments show the possibility of creating a new theory in the field of mesh turbines and jet systems. Patents support the novelty of the developed technical solutions. Doi: 10.28991/esj-2021-01311 Full Text: PDF

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

“…In modern conditions, the reduction of energy costs for implementing production processes is the most urgent problem. To solve this problem, a series of research works is being conducted in the laboratories of Gubkin University to create novel and promising turbomachinery [3][4][5]. In these promising machines, the flow channels have a mesh structure.…”

“…In a turbomachine, large blades are replaced with a set of smaller blades, which are interconnected to form mesh-structured flow channels. During physical and numerical experiments, for the first time, extreme conditions were considered for the flow of liquid and gas through a nozzle equipped with a velocity vector control system (or thrust vector, in aviation terminology), in the control range for the velocity vector deviation angle (thrust vector) from plus 180 degrees to minus 180 degrees, within the geometric sphere [3,5]. Along with this, the question arose about the need to choose scientific directions for expanding applied research and developing promising mesh turbomachinery.…”

“…When several jets are located close to each other, the resulting aerodynamics are complicated due to the interaction of the jets [54]. The field of scientific research and practical applications of nozzle devices can be significantly expanded, regarding the expansion of the control range for the velocity vector (thrust vector) [3,4].…”

“…Research continues on nozzle options with deflectors of various shapes [75], including a cruciform nozzle outlet channel [76], to transfer directional force to the traditional aircraft, and to vertical take-off and landing aircraft. The field of scientific research and practical applications of novel nozzle devices can be significantly expanded considering the expansion of the control range for the velocity vector (thrust vector) [3,4], from plus 180 degrees to minus 180 degrees within the geometric sphere.…”

“…This article presents the results of calculations and computer simulation. As part of the ongoing research work in 2020-2021, laboratory bench tests of micromodels have been carried out; materials on these bench tests were published earlier [3][4][5]. The object of this research is a combination of gas-dynamic and hydrodynamic processes in stationary and non-stationary flow modes through mesh-structured rotating and stationary channels.…”