Author: "Dvoynishnikov, S. V." / Publication Year Range: Last 50 years / Publisher: american institute of physics - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Dvoynishnikov, S. V."' showing total 3 results

Start Over Author "Dvoynishnikov, S. V." Publication Year Range Last 50 years Publisher american institute of physics

Author: Naumov, I. V., Dvoynishnikov, S. V., Kabardin, I. K., and Tsoy, M. A.
Subjects: *POLYGONAL numbers, *REYNOLDS number, *NUMERICAL analysis, *COMPUTER simulation, *DOPPLER anemometry, *COMPUTER software
Abstract: The vortex breakdown bubble in the confined flow generated by a rotating lid in closed containers with polygonal cross sections was analysed both experimentally and numerically for the height/radius aspect ratio equal to 2. The stagnation point locations of the breakdown bubble emergence and the corresponding Reynolds number were determined experimentally and in addition computed numerically by STAR-CCM+ CFD software for square, pentagonal, hexagonal, and octagonal cross section configurations. The flow pattern and the velocity were observed and measured by combining the seeding particle visualization and the temporal accuracy of laser Doppler anemometry. The vortex breakdown size and position on the container axis were determined for Reynolds numbers, ranging from 1450 to 2400. The obtained results were compared with the flow structure in the closed container of cubical and cylindrical configurations. It is shown that the measured evolution of steady vortex breakdown is in close agreement with the numerical results. [ABSTRACT FROM AUTHOR]
Published: 2015
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Author: Yavorsky, N. I., Kabardin, I. K., Meledin, V. G., Pravdina, M. Kh., Rakhmanov, V. V., Dvoynishnikov, S. V., Glavny, V. G., Krotov, S. V., Yu Satbakov, O., Klimonov, I. A., Balzhinimayev, B. S., Zolotarskiy, I. A., and Ivanov, S. Yu.
Abstract: To reduce emissions of harmful substances into the atmosphere, it is very important to create compact, energyefficient catalytic units for afterburning volatile organic compounds. A key component of such units is the catalyst cartridge. The efficiency of its operation is provided by the supply of a gas flow with a uniform velocity field. To solve the problem, an experimental model of the gas flow distributor and an aerodynamic stand for its testing were created. A set of wingshaped inserts was used to align the velocity profile in the rotary section of the model. The form and arrangement of the blades were chosen by numerical simulation. Numerical calculations were verified on the basis of measurement of velocity fields in the model sections. [ABSTRACT FROM AUTHOR]
Published: 2018
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Author: Yavorsky, N. I., Kabardin, I. K., Meledin, V. G., Pravdina, M. Kh., Rakhmanov, V. V., Dvoynishnikov, S. V., Glavny, V. G., Krotov, S. V., Yu Satbakov, O., Klimonov, I. A., Balzhinimayev, B. S., Zolotarskiy, I. A., and Ivanov, S. Yu.
Subjects: *GAS flow, *VOLATILE organic compounds, *AERODYNAMICS, *CATALYSTS, *FLOW velocity
Abstract: To reduce emissions of harmful substances into the atmosphere, it is very important to create compact, energyefficient catalytic units for afterburning volatile organic compounds. A key component of such units is the catalyst cartridge. The efficiency of its operation is provided by the supply of a gas flow with a uniform velocity field. To solve the problem, an experimental model of the gas flow distributor and an aerodynamic stand for its testing were created. A set of wingshaped inserts was used to align the velocity profile in the rotary section of the model. The form and arrangement of the blades were chosen by numerical simulation. Numerical calculations were verified on the basis of measurement of velocity fields in the model sections. [ABSTRACT FROM AUTHOR]
Published: 2018
Full Text: View/download PDF

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