An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface
New experimental data that quantitatively characterize fields of the mean velocity and temperature, the intensity of temperature and velocity pulsations, and also velocity-temperature correlations in the near zone of a circular cylinder placed on the vertical heated surface at the height correspondi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Peter the Great St.Petersburg Polytechnic University
2020-03-01
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| Series: | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
| Subjects: | |
| Online Access: | https://physmath.spbstu.ru/article/2020.47.06/ |
| _version_ | 1819120435658227712 |
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| author | Chumakov Yrei Levchenya Alexander Khrapunov Evgenii |
| author_facet | Chumakov Yrei Levchenya Alexander Khrapunov Evgenii |
| author_sort | Chumakov Yrei |
| collection | DOAJ |
| description | New experimental data that quantitatively characterize fields of the mean velocity and temperature, the intensity of temperature and velocity pulsations, and also velocity-temperature correlations in the near zone of a circular cylinder placed on the vertical heated surface at the height corresponding to the fully turbulent flow regime have been presented. Systematic measurements in the middle vertical plane (the plane that contains the cylinder axis) were performed using constant temperature anemometer and resistance temperature detectors. The experimental data was compared with numerical simulation one obtained through solving the RANS equations. The overall data were in good agreement and indicated the cardinal restructuring of the flows both before the cylinder (where the horseshoe-shaped vortex formed) and behind the obstacle (in the near separated area and the recovery one of the natural convective near-wall layer). |
| first_indexed | 2024-12-22T06:20:37Z |
| format | Article |
| id | doaj.art-3e904f70df9243a99f181c677cbaa3a8 |
| institution | Directory Open Access Journal |
| issn | 2405-7223 |
| language | English |
| last_indexed | 2024-12-22T06:20:37Z |
| publishDate | 2020-03-01 |
| publisher | Peter the Great St.Petersburg Polytechnic University |
| record_format | Article |
| series | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
| spelling | doaj.art-3e904f70df9243a99f181c677cbaa3a82022-12-21T18:35:58ZengPeter the Great St.Petersburg Polytechnic UniversitySt. Petersburg Polytechnical University Journal: Physics and Mathematics2405-72232020-03-0113110.18721/JPM.1310620714726An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surfaceChumakov Yrei0Levchenya Alexander1Khrapunov Evgenii2Peter the Great St. Petersburg Polytechnic UniversityPeter the Great St. Petersburg Polytechnic UniversityPeter the Great St. Petersburg Polytechnic UniversityNew experimental data that quantitatively characterize fields of the mean velocity and temperature, the intensity of temperature and velocity pulsations, and also velocity-temperature correlations in the near zone of a circular cylinder placed on the vertical heated surface at the height corresponding to the fully turbulent flow regime have been presented. Systematic measurements in the middle vertical plane (the plane that contains the cylinder axis) were performed using constant temperature anemometer and resistance temperature detectors. The experimental data was compared with numerical simulation one obtained through solving the RANS equations. The overall data were in good agreement and indicated the cardinal restructuring of the flows both before the cylinder (where the horseshoe-shaped vortex formed) and behind the obstacle (in the near separated area and the recovery one of the natural convective near-wall layer).https://physmath.spbstu.ru/article/2020.47.06/circular cylinderfree-convective heat exchangehot wire anemometryarea of influence |
| spellingShingle | Chumakov Yrei Levchenya Alexander Khrapunov Evgenii An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface St. Petersburg Polytechnical University Journal: Physics and Mathematics circular cylinder free-convective heat exchange hot wire anemometry area of influence |
| title | An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface |
| title_full | An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface |
| title_fullStr | An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface |
| title_full_unstemmed | An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface |
| title_short | An experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface |
| title_sort | experimental study of the flow in the area of influence of a cylinder immersed in the free convective boundary layer on a vertical surface |
| topic | circular cylinder free-convective heat exchange hot wire anemometry area of influence |
| url | https://physmath.spbstu.ru/article/2020.47.06/ |
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