Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades
Due to the increasingly high turbine inlet temperatures, heat transfer analysis is now, more than ever, a vital part of the design and optimization of high-pressure turbine rotor blades of a modern jet engine. The present study aimed to find out how shape deviation and in-service deterioration affec...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | International Journal of Turbomachinery, Propulsion and Power |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-186X/8/3/24 |
| _version_ | 1797579577142280192 |
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| author | Mario Carta Tiziano Ghisu Shahrokh Shahpar |
| author_facet | Mario Carta Tiziano Ghisu Shahrokh Shahpar |
| author_sort | Mario Carta |
| collection | DOAJ |
| description | Due to the increasingly high turbine inlet temperatures, heat transfer analysis is now, more than ever, a vital part of the design and optimization of high-pressure turbine rotor blades of a modern jet engine. The present study aimed to find out how shape deviation and in-service deterioration affect heat exchange patterns on the rotor blade. The rotor geometries used for this analysis are represented by a set of high-resolution 3D structured light scans of blades with the same number of in-service hours. An automatic meshing technique was employed to generate high-resolution meshes directly on the scanned rotor geometries, which captured all the surface features with high fidelity. Steady-state 3D RANS flow simulations with a <i>k-ω SST</i> turbulence model were conducted on a one-and-a-half stage computational domain of the scanned geometries. First, the distribution of the heat transfer coefficient was calculated for each blade; then, a correlation was sought between the heat transfer coefficient and parametrized shape deviation, to assess the impact of each parameter on HTC levels. |
| first_indexed | 2024-03-10T22:38:06Z |
| format | Article |
| id | doaj.art-53b2d046d9c24004b56cc271af2cecc1 |
| institution | Directory Open Access Journal |
| issn | 2504-186X |
| language | English |
| last_indexed | 2024-03-10T22:38:06Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Turbomachinery, Propulsion and Power |
| spelling | doaj.art-53b2d046d9c24004b56cc271af2cecc12023-11-19T11:13:02ZengMDPI AGInternational Journal of Turbomachinery, Propulsion and Power2504-186X2023-08-01832410.3390/ijtpp8030024Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor BladesMario Carta0Tiziano Ghisu1Shahrokh Shahpar2Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, ItalyDepartment of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, ItalyRolls-Royce plc, Innovation Hub—Future Methods, Derby DE24 8BJ, UKDue to the increasingly high turbine inlet temperatures, heat transfer analysis is now, more than ever, a vital part of the design and optimization of high-pressure turbine rotor blades of a modern jet engine. The present study aimed to find out how shape deviation and in-service deterioration affect heat exchange patterns on the rotor blade. The rotor geometries used for this analysis are represented by a set of high-resolution 3D structured light scans of blades with the same number of in-service hours. An automatic meshing technique was employed to generate high-resolution meshes directly on the scanned rotor geometries, which captured all the surface features with high fidelity. Steady-state 3D RANS flow simulations with a <i>k-ω SST</i> turbulence model were conducted on a one-and-a-half stage computational domain of the scanned geometries. First, the distribution of the heat transfer coefficient was calculated for each blade; then, a correlation was sought between the heat transfer coefficient and parametrized shape deviation, to assess the impact of each parameter on HTC levels.https://www.mdpi.com/2504-186X/8/3/24high-pressure turbineheat transfershrouded bladelevel set meshingmulti-fidelity simulation |
| spellingShingle | Mario Carta Tiziano Ghisu Shahrokh Shahpar Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades International Journal of Turbomachinery, Propulsion and Power high-pressure turbine heat transfer shrouded blade level set meshing multi-fidelity simulation |
| title | Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades |
| title_full | Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades |
| title_fullStr | Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades |
| title_full_unstemmed | Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades |
| title_short | Heat Transfer Analysis of Damaged Shrouded High-Pressure Turbine Rotor Blades |
| title_sort | heat transfer analysis of damaged shrouded high pressure turbine rotor blades |
| topic | high-pressure turbine heat transfer shrouded blade level set meshing multi-fidelity simulation |
| url | https://www.mdpi.com/2504-186X/8/3/24 |
| work_keys_str_mv | AT mariocarta heattransferanalysisofdamagedshroudedhighpressureturbinerotorblades AT tizianoghisu heattransferanalysisofdamagedshroudedhighpressureturbinerotorblades AT shahrokhshahpar heattransferanalysisofdamagedshroudedhighpressureturbinerotorblades |