A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall
The systematic data on the effect of ribbing on the parameters of a relative (in comparison with a smooth channel) increase in hydraulic resistance p and heat transfer q in the range of Reynolds numbers from 50 to 8106 has been obtained by numerical modeling of a developed spatially periodic flow an...
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Peter the Great St.Petersburg Polytechnic University
2024-12-01
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| Series: | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
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| Online Access: | https://physmath.spbstu.ru/article/2024.77.03/ |
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| author | Ris Vladimir Galaev Sergey Levchenya Alexander |
| author_facet | Ris Vladimir Galaev Sergey Levchenya Alexander |
| author_sort | Ris Vladimir |
| collection | DOAJ |
| description | The systematic data on the effect of ribbing on the parameters of a relative (in comparison with a smooth channel) increase in hydraulic resistance p and heat transfer q in the range of Reynolds numbers from 50 to 8106 has been obtained by numerical modeling of a developed spatially periodic flow and stabilized heat transfer of incompressible gas with a Prandtl number of 0.7 in a rectangular channel with one-sided internal ribbing. In the laminar regime, the q value was found to be small and amounted about 10 %, and p value exceeding 2.5. In the turbulent regime, the q value behaved nonmonotonic depending on the Reynolds number, the range of its variation was 1.5–2.6, while p increased from 3.5 to 7.0. |
| format | Article |
| id | doaj-art-ce8d4e3a6d9948f5a86f45bf3b55f5de |
| institution | Kabale University |
| issn | 2405-7223 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Peter the Great St.Petersburg Polytechnic University |
| record_format | Article |
| series | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
| spelling | doaj-art-ce8d4e3a6d9948f5a86f45bf3b55f5de2025-01-16T13:35:28ZengPeter the Great St.Petersburg Polytechnic UniversitySt. Petersburg Polytechnical University Journal: Physics and Mathematics2405-72232024-12-0117410.18721/JPM.1740320714726A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wallRis Vladimir0Galaev Sergey1https://orcid.org/0000-0001-7964-0200Levchenya Alexander2Peter the Great St. Petersburg Polytechnic UniversityPeter the Great St. Petersburg Polytechnic UniversityPeter the Great St. Petersburg Polytechnic UniversityThe systematic data on the effect of ribbing on the parameters of a relative (in comparison with a smooth channel) increase in hydraulic resistance p and heat transfer q in the range of Reynolds numbers from 50 to 8106 has been obtained by numerical modeling of a developed spatially periodic flow and stabilized heat transfer of incompressible gas with a Prandtl number of 0.7 in a rectangular channel with one-sided internal ribbing. In the laminar regime, the q value was found to be small and amounted about 10 %, and p value exceeding 2.5. In the turbulent regime, the q value behaved nonmonotonic depending on the Reynolds number, the range of its variation was 1.5–2.6, while p increased from 3.5 to 7.0.https://physmath.spbstu.ru/article/2024.77.03/ribbed channelperiodic flowheat transfer enhancementrans modelles-wale model |
| spellingShingle | Ris Vladimir Galaev Sergey Levchenya Alexander A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall St. Petersburg Polytechnical University Journal: Physics and Mathematics ribbed channel periodic flow heat transfer enhancement rans model les-wale model |
| title | A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall |
| title_full | A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall |
| title_fullStr | A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall |
| title_full_unstemmed | A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall |
| title_short | A spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall |
| title_sort | spatially periodic flow and heat transfer in a rectangular channel with one ribbed wall |
| topic | ribbed channel periodic flow heat transfer enhancement rans model les-wale model |
| url | https://physmath.spbstu.ru/article/2024.77.03/ |
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