Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel
The flow field inside a cooling channel for the trailing edge of gas turbine blades has been numerically investigated with the aim to highlight the effects of channel rotation and orientation. A commercial 3D RANS solver including a SST turbulence model has been used to compute the isothermal steady...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2013/765142 |
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| _version_ | 1832566111473762304 |
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| author | Matteo Pascotto Alessandro Armellini Luca Casarsa Claudio Mucignat Pietro Giannattasio |
| author_facet | Matteo Pascotto Alessandro Armellini Luca Casarsa Claudio Mucignat Pietro Giannattasio |
| author_sort | Matteo Pascotto |
| collection | DOAJ |
| description | The flow field inside a cooling channel for the trailing edge of gas turbine blades has been numerically investigated with the aim to highlight the effects of channel rotation and orientation. A commercial 3D RANS solver including a SST turbulence model has been used to compute the isothermal steady air flow inside both static and rotating passages. Simulations were performed at a Reynolds number equal to 20000, a rotation number (Ro) of 0, 0.23, and 0.46, and channel orientations of γ=0∘, 22.5°, and 45°, extending previous results towards new engine-like working conditions. The numerical results have been carefully validated against experimental data obtained by the same authors for conditions γ=0∘ and Ro = 0, 0.23. Rotation effects are shown to alter significantly the flow field inside both inlet and trailing edge regions. These effects are attenuated by an increase of the channel orientation from γ=0∘ to 45°. |
| format | Article |
| id | doaj-art-09fd4c9b0f32413c889956d41bace7b8 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-09fd4c9b0f32413c889956d41bace7b82025-02-03T01:04:55ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342013-01-01201310.1155/2013/765142765142Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling ChannelMatteo Pascotto0Alessandro Armellini1Luca Casarsa2Claudio Mucignat3Pietro Giannattasio4Dipartimento di Ingegneria Elettrica, Gestionale e Meccanica, Universita’ degli Studi di Udine, via delle Scienze 208, 33100 Udine, ItalyDipartimento di Ingegneria Elettrica, Gestionale e Meccanica, Universita’ degli Studi di Udine, via delle Scienze 208, 33100 Udine, ItalyDipartimento di Ingegneria Elettrica, Gestionale e Meccanica, Universita’ degli Studi di Udine, via delle Scienze 208, 33100 Udine, ItalyDipartimento di Ingegneria Elettrica, Gestionale e Meccanica, Universita’ degli Studi di Udine, via delle Scienze 208, 33100 Udine, ItalyDipartimento di Ingegneria Elettrica, Gestionale e Meccanica, Universita’ degli Studi di Udine, via delle Scienze 208, 33100 Udine, ItalyThe flow field inside a cooling channel for the trailing edge of gas turbine blades has been numerically investigated with the aim to highlight the effects of channel rotation and orientation. A commercial 3D RANS solver including a SST turbulence model has been used to compute the isothermal steady air flow inside both static and rotating passages. Simulations were performed at a Reynolds number equal to 20000, a rotation number (Ro) of 0, 0.23, and 0.46, and channel orientations of γ=0∘, 22.5°, and 45°, extending previous results towards new engine-like working conditions. The numerical results have been carefully validated against experimental data obtained by the same authors for conditions γ=0∘ and Ro = 0, 0.23. Rotation effects are shown to alter significantly the flow field inside both inlet and trailing edge regions. These effects are attenuated by an increase of the channel orientation from γ=0∘ to 45°.http://dx.doi.org/10.1155/2013/765142 |
| spellingShingle | Matteo Pascotto Alessandro Armellini Luca Casarsa Claudio Mucignat Pietro Giannattasio Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel International Journal of Rotating Machinery |
| title | Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel |
| title_full | Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel |
| title_fullStr | Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel |
| title_full_unstemmed | Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel |
| title_short | Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel |
| title_sort | effects of rotation at different channel orientations on the flow field inside a trailing edge internal cooling channel |
| url | http://dx.doi.org/10.1155/2013/765142 |
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