Development of Mathematical Model of Circular Grill of Piece-Smooth Profiles and Creation on Its Basis of Gas-Sucting Fans

Makarov, N. V.; Makarov, V. N.; Lifanov, A. V.; Materov, A. Y.; Kitonsa, H.

doi:10.1088/1755-1315/272/3/032075

Cited by 2 publications

(6 citation statements)

References 1 publication

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“…While using the graphical model shown in Fig. 2, we obtain the flow potential on a multivalent Riemannian domain which parameters are the functions of the external network parameters [2,3].…”

Section: Methodsmentioning

confidence: 99%

“…The interaction of the air flow with the turbomachine impeller blades is performed through a stable Karman vortex street formed by the bound vortex system being a hydrodynamic analogue of the blade profile [5][6][7].…”

Section: Statement Of the Problemmentioning

confidence: 99%

“…The environmental and industrial safety protection of enterprises of the mining and oil and gas complex of the Russian Federation is equivalent to 13% of the country's GDP. Significant changes in the aerodynamic parameters of the process environment impair the energy efficiency of turbomachines due to its low adaptability [1][2][3][4]. Competitive growth of enterprises combined with the introduction of environmental technologies updates the task of developing the design and production methodology for the aerodynamically adaptive turbomachines that adequately and economically soundly establish the necessary air parameters in the technological space that implement the concept of optimal innovative subsurface management.…”

Section: Introductionmentioning

confidence: 99%

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Aerodynamic adaptivity criterion in the production methodology of the energy-efficient mine turbomachines

Makarov

Lifanov

et al. 2020

E3S Web Conf.

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Competitive growth of enterprises in the mining and oil and gas industries of the Russian economy, combined with industrial safety requirements, updates the task of developing the design and production methodology for the aerodynamically adaptive turbomachines with a nature-like dominance. Such machines adequately and economically soundly establish the necessary parameters of the air environment in the technological space that implement the concept of optimal subsurface management ecotechnology. This article proposes a production methodology for the energy-efficient turbomachines using the aerodynamic adaptability criterion that determines the relations between the velocity circulation and flow acceleration around the vane cascade profiles as the nature-like dominance of the process for converting the mechanical rotational energy of impeller into the internal energy of the air flow. The Karman theory of bound and free vortices, the Chaplygin-Joukowski-Kutta hypothesis, the conformal mapping method, and curve irregularities are used for development of a mathematical model for controlling the aerodynamic adaptability. It is proved that the control dominant is the intensity of the sources distributed over the turbomachine impeller vane profile that determine the flow diffusivity and as a result the acceleration circulation around the profile. It has been experimentally confirmed that the use of profiles obtained using the proposed technique increases the aerodynamic adaptability coefficient of the turbomachine by 51%, while increasing the area of its cost-effective performance by at least 2 times.

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Section: Methodsmentioning

confidence: 99%

Section: Statement Of the Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Aerodynamic adaptivity criterion in the production methodology of the energy-efficient mine turbomachines

Makarov

Lifanov

et al. 2020

E3S Web Conf.

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“…The design of turbomachines allows to implement active methods for controlling the circulation of velocity and acceleration of the flow using sources and vortices that form "aero-gas-dynamic profiles" changing the streamlines of the air flow [5][6][7][8]. The jets of the sources 2 slow down or accelerate the air velocity Vр, Vт on the working and back surfaces of the profile of the blade 1, combining rear stagnation point 3 and the flow separation point 4.…”

Section: Research Objectivementioning

confidence: 99%

“…Using [7], the flow coefficients of sources and drains are aero-gas-dynamically interconnected with the pressure in the impeller of the turbomachine associated with the parameters of the external environment.…”

Section: Eumentioning

confidence: 99%

Mathematical model of jet control of adaptability of mine turbomachines

Makarov

2020

E3S Web Conf.

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Achieving synergies from high-tech industries in combination with environmental technologies of innovative subsurface use is possible only on the path to the formation of a qualitatively new approach to creation of energy-efficient technologies including assistive technologies. The lack of adaptability of turbomachines providing industrial safety by more than 15% increases the cost of production of mining and oil and gas complexes of the Russian Federation, reducing their competitiveness due to their low energy efficiency. An equation is derived in the article for calculating the circulation of a circular lattice of aero-gas-dynamic profiles as a function of the energy parameters of the sources and vortex chambers drains associated with the energy efficiency of turbomachines. The dominant influence of jet control over the flow profiles of impeller blades is proved due to the energy characteristics of sources and drains, which are associated with the parameters of the mine network. Improving the methodology for the aerodynamic calculation of circular lattice of aerodynamic profiles and the development of radial aerodynamic schemes with increased adaptability made it possible to derive an absolutely unique vector for the future development of fan construction, fundamentally based on nature-like technologies for energy conversion and transfer. The possibility of a significant increase in aerodynamic loading, adaptability and efficiency of mine turbomachines, made according to radial aerodynamic schemes with vortex chambers built into the blades of the impeller, which perform the functions of adaptive inkjet circulation control devices, is proved. According to the results of the research, the VRVP-8 radial-vortex fan was created, which has 55% greater energy efficiency in relation to fans of the VME VV type. Currently, turbomachines are being developed based on nature-like technologies in relation to the oil and gas industry.

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Development of Mathematical Model of Circular Grill of Piece-Smooth Profiles and Creation on Its Basis of Gas-Sucting Fans

Cited by 2 publications

References 1 publication

Aerodynamic adaptivity criterion in the production methodology of the energy-efficient mine turbomachines

Aerodynamic adaptivity criterion in the production methodology of the energy-efficient mine turbomachines

Mathematical model of jet control of adaptability of mine turbomachines

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