Appliance of Inertial Gas-Dynamic Separation of Gas-Dispersion Flows in the Curvilinear Convergent-Divergent Channels for Compressor Equipment Reliability Improvement

Liaposhchenko, Oleksandr; Sklabinskyi, Vsevolod Ivanovych; Zavialov, Volodymyr; Pavlenko, Ivan; Nastenko, Olha Viktorivna; Demianenko, Maryna

doi:10.1088/1757-899x/233/1/012025

Cited by 31 publications

(9 citation statements)

References 6 publications

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“…As it was obtained previously in articles [17][18][19], the vibration impact of an oscillating wall to the flow leads to a change of the particle velocity by a periodic law, which is a superposition of several components.…”

Section: Research Methodology 21 Previous Approximation Of the Basssupporting

confidence: 63%

Parameter identification of the Basset force acting on particles in fluid flow induced by the oscillating wall

Pavlenko¹,

Liaposhchenko²,

Piteľ³

et al. 2019

J. Appl. Math. Comput. Mech.

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The article is aimed at the development of the analytical approach for evaluating the parameters of the Basset force acting on a particle in two-dimensional fluid flow induced by the oscillating wall. By applying regression analysis, analytical expressions to determine complementary functions were established for evaluating the Basset force. The obtained dependencies were generalized using the infinite power series. As a result of studying the hydrodynamics of a two-phase flow, analytical dependencies to determine the Basset force were proposed for assessing its impact on particles of the dispersed phase in a plane channel with the oscillating wall. It was discovered that the Basset force affects larger particles. However, in the case of relatively large wavelengths, its averaged value for the vibration period is neglected. Additionally, the value of the Basset force was determined analytically for the case of relatively small wavelengths. Moreover, it was discovered that its impact can be increased by reducing the wavelength of the oscillating wall.

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Section: Research Methodology 21 Previous Approximation Of the Basssupporting

confidence: 63%

Parameter identification of the Basset force acting on particles in fluid flow induced by the oscillating wall

Pavlenko¹,

Liaposhchenko²,

Piteľ³

et al. 2019

J. Appl. Math. Comput. Mech.

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“…Attention should be paid to the rapid development of superoleophobic/superoleophilic, superhydrophilic/superhydrophobic surfaces [19][20][21][22][23] and membranes [24][25][26][27] as well as energy-efficient modular separation devices, which are used for separation of oil-water emulsions and gas-liquid mixtures. Additionally, the appliance of inertial gas-dynamic separation of gas-dispersion flows in the curvilinear convergent-divergent channels [28] to improve the reliability of compressor equipment is presented in [29].…”

Section: Literature Reviewmentioning

confidence: 99%

Identification of the Interfacial Surface in Separation of Two-Phase Multicomponent Systems

et al. 2020

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The area of the contact surface of phases is one of the main hydrodynamic indicators determining the separation and heat and mass transfer equipment calculations. Methods of evaluating this indicator in the separation of multicomponent two-phase systems were considered. It was established that the existing methods for determining the interfacial surface are empirical ones, therefore limited in their applications. Consequently, the use of the corresponding approaches is appropriate for certain technological equipment only. Due to the abovementioned reasons, the universal analytical formula for determining the interfacial surface was developed. The approach is based on both the deterministic and probabilistic mathematical models. The methodology was approved on the example of separation of two-phase systems considering the different fractional distribution of dispersed particles. It was proved that the area of the contact surface with an accuracy to a dimensionless ratio depends on the volume concentration of the dispersed phase and the volume of flow. The separate cases of evaluating the contact area ratio were considered for different laws of the fractional distribution of dispersed particles. As a result, the dependence on the identification of the abovementioned dimensionless ratio was proposed, as well as its limiting values were determined. Finally, a need for the introduction of the correction factor was substantiated and practically proved on the example of mass-transfer equipment.

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“…Particularly, the articles [1][2][3][4] deal with the coupled thermal, structural, and vibration analysis. Traditional approaches for measuring parameters of the gas flow in air distribution devices are investigated in the articles [5][6][7][8]. These studies are mainly experimental and based on empirical approaches, which do not reflect the hydrodynamic features.…”

Section: Literature Reviewmentioning

confidence: 99%

Solving the Coupled Aerodynamic and Thermal Problem for Modeling the Air Distribution Devices with Perforated Plates

et al. 2019

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The article is focused on the comprehensive analysis of the aerodynamics of air distribution devices with the combined heat and mass exchange, with the aim to improve the following hydro- and thermodynamic parameters of ventilation systems: flow rate, air velocity, hydraulic losses, and temperature. The inadequacy of the previously obtained characteristics has confirmed the need for more rational designs of air distribution systems. Consequently, the use of perforated plates was proposed to increase hydraulic losses for reducing the average velocity and ensuring a uniform distribution of the velocity field on the outlet of the device. The effectiveness of one of the five possible designs usage is confirmed by the results of numerical simulation. The coefficient of hydraulic losses decreased by 2.5–3.0 times, as well as the uniformity of the outlet velocity field for the air flow being provided. Based on the three-factor factorial experiment, the linear mathematical model was obtained for determining the dependence of the average velocity on the flow rate, plate’s area, and diameter of holes. This model was significantly improved using the multiparameter quasi-linear regression analysis. As a result, the nonlinear mathematical models were obtained, allowing the analytical determination of the hydraulic losses and average velocity of the air flow. Additionally, the dependencies for determining the relative error of measuring the average velocity were obtained.

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Appliance of Inertial Gas-Dynamic Separation of Gas-Dispersion Flows in the Curvilinear Convergent-Divergent Channels for Compressor Equipment Reliability Improvement

Cited by 31 publications

References 6 publications

Parameter identification of the Basset force acting on particles in fluid flow induced by the oscillating wall

Parameter identification of the Basset force acting on particles in fluid flow induced by the oscillating wall

Identification of the Interfacial Surface in Separation of Two-Phase Multicomponent Systems

Solving the Coupled Aerodynamic and Thermal Problem for Modeling the Air Distribution Devices with Perforated Plates

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