Vortex dynamics of junction flows

Тип публікації :
Стаття
Дата випуску :
2021
Автор(и) :
Воскобійник, В. А.
Воскобойник, О. А.
Терещенко, Л. М.
Воскобійник, А. В.
Мова основного тексту :
Англійська
eKNUTSHIR URL :
DOI :
Журнал :
Випуск :
4
ISSN :
1812-5409
Початкова сторінка :
25
Кінцева сторінка :
28
Цитування :
[APA 7] Воскобійник, В. А., Воскобойник, О. А., Терещенко, Л. М., & Воскобійник, А. В. (2021). Vortex dynamics of junction flows. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, (4), 25–28. https://doi.org/10.17721/1812-5409.2021/4.2
[ДСТУ] Vortex dynamics of junction flows / В. А. Воскобійник et al. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics. 2021. no. 4. P. 25—28. DOI: 10.17721/1812-5409.2021/4.2 (date of access: 25.07.2026).
Group constructions of bluff bodies are widely used in bridge construction practice. The junction flows of such structures are characterized by considerable complexity, nonstationarity and instability. In the vicinity of bluff bodies, systems of horseshoe vortex structures, shear layers, separated regions, jet flows, wake vortices and vortex Karman’s streets are formed. The study of the features of the generation and evolution of vortex and jet flows, the mechanisms of interaction of these flows with streamlined surfaces requires considerable effort during numerical and physical modeling. The purpose of the work is to determine the features of vortex and jet flow in the region of junction of three-row pile grillage with a rigid flat surface. Experimental studies were carried out in laboratory conditions in a hydrodynamic channel, where the three-row group of cylinders was installed on the hydraulically smooth rigid surface. Visual investigations and measurements of the velocity field were carried out inside and around the three-row grillage. The features of the formation and evolution of vortex and jet flows inside and near the cylindrical group were established. Integral and spectral characteristics of the velocity fluctuation field were obtained.
Pages of the article in the issue: 25 - 28
Language of the article: Ukrainian
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