Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls
With an increased inlet gas temperature and the homogenization of the combustion chamber outlet temperature, the endwalls of gas turbines are exposed to extremely high heat loads. The complex flow structure of turbine endwalls makes it difficult to cool some regions of the endwalls, which can easily...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/8/702 |
| _version_ | 1797585886702993408 |
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| author | Rongdi Zhang Pengchao Liu Xirui Zhang Wenxiong Xi Jian Liu |
| author_facet | Rongdi Zhang Pengchao Liu Xirui Zhang Wenxiong Xi Jian Liu |
| author_sort | Rongdi Zhang |
| collection | DOAJ |
| description | With an increased inlet gas temperature and the homogenization of the combustion chamber outlet temperature, the endwalls of gas turbines are exposed to extremely high heat loads. The complex flow structure of turbine endwalls makes it difficult to cool some regions of the endwalls, which can easily cause endwall ablation, reducing turbine aerodynamic performance and threatening the turbine’s safe operation. In order to improve the cooling and aerodynamic performance of gas turbines, the flow structure, heat transfer and film cooling characteristics of endwalls are analyzed in depth in this paper. This paper summarizes and analyzes the development of the aerodynamic heat transfer and film cooling of gas turbine endwalls in terms of geometric structures and flow boundary conditions and also presents new research directions. Based on the literature, the development and challenge of turbine endwall film cooling are also discussed. |
| first_indexed | 2024-03-11T00:13:32Z |
| format | Article |
| id | doaj.art-740d3c10b75f432b8fa2cb749e727b1e |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-11T00:13:32Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-740d3c10b75f432b8fa2cb749e727b1e2023-11-18T23:50:02ZengMDPI AGAerospace2226-43102023-08-0110870210.3390/aerospace10080702Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines EndwallsRongdi Zhang0Pengchao Liu1Xirui Zhang2Wenxiong Xi3Jian Liu4Research Institute of Aerospace Technology, Central South University, Changsha 410012, ChinaResearch Institute of Aerospace Technology, Central South University, Changsha 410012, ChinaResearch Institute of Aerospace Technology, Central South University, Changsha 410012, ChinaResearch Institute of Aerospace Technology, Central South University, Changsha 410012, ChinaResearch Institute of Aerospace Technology, Central South University, Changsha 410012, ChinaWith an increased inlet gas temperature and the homogenization of the combustion chamber outlet temperature, the endwalls of gas turbines are exposed to extremely high heat loads. The complex flow structure of turbine endwalls makes it difficult to cool some regions of the endwalls, which can easily cause endwall ablation, reducing turbine aerodynamic performance and threatening the turbine’s safe operation. In order to improve the cooling and aerodynamic performance of gas turbines, the flow structure, heat transfer and film cooling characteristics of endwalls are analyzed in depth in this paper. This paper summarizes and analyzes the development of the aerodynamic heat transfer and film cooling of gas turbine endwalls in terms of geometric structures and flow boundary conditions and also presents new research directions. Based on the literature, the development and challenge of turbine endwall film cooling are also discussed.https://www.mdpi.com/2226-4310/10/8/702turbine endwallfilm coolingheat transferdevelopment and challenges |
| spellingShingle | Rongdi Zhang Pengchao Liu Xirui Zhang Wenxiong Xi Jian Liu Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls Aerospace turbine endwall film cooling heat transfer development and challenges |
| title | Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls |
| title_full | Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls |
| title_fullStr | Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls |
| title_full_unstemmed | Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls |
| title_short | Recent Developments in the Aerodynamic Heat Transfer and Cooling Technology of Gas Turbines Endwalls |
| title_sort | recent developments in the aerodynamic heat transfer and cooling technology of gas turbines endwalls |
| topic | turbine endwall film cooling heat transfer development and challenges |
| url | https://www.mdpi.com/2226-4310/10/8/702 |
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