Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-04-120-48
DOI: https://dx.doi.org/10.15863/TAS.2023.04.120.48
Language: English
Citation: Chemezov, D., et al. (2023). Investigation of the formation of Karman vortex streets in hydrodynamics. ISJ Theoretical & Applied Science, 04 (120), 256-261. Soi: http://s-o-i.org/1.1/TAS-04-120-48 Doi: https://dx.doi.org/10.15863/TAS.2023.04.120.48 |
Pages: 256-261
Published: 30.04.2023
Abstract: The analysis of the results of computer modeling of the process of fluid flow around the cylinder in order to determine the intensity of the action of Karman vortex streets at different Reynolds numbers was carried out in the article. It is determined that vortex streets are formed at the initial velocity of fluid flow from 1.0 m/s and higher. The greatest difference in the calculated frequencies of vortex formation of flows is observed in the range of initial fluid flow velocities from 0.1 to 1.0 m/s. The values of the drag coefficient decrease with an increase in the initial velocity of fluid flow and do not change further in the range from 1.0 to 10.0 m/s. The values of the lift coefficient increase with an increase in the initial velocity of fluid flow.
Key words: cylinder, fluid, vortex street, flow velocity, drag coefficient, lift coefficient.
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