Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade
The effects of the periodical turbulence and pressure fluctuation on suction surface heat transfer over airfoils of a row of rotor blades with a certain type have been investigated numerically in this paper. The calculation is performed using ν2¯−f model with the numerical results of pressure fluctu...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2017-06-01
|
| Series: | Propulsion and Power Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212540X1730024X |
| _version_ | 1797709630275584000 |
|---|---|
| author | Liang Guo Yuying Yan Wanchen Sun Jie Zhu |
| author_facet | Liang Guo Yuying Yan Wanchen Sun Jie Zhu |
| author_sort | Liang Guo |
| collection | DOAJ |
| description | The effects of the periodical turbulence and pressure fluctuation on suction surface heat transfer over airfoils of a row of rotor blades with a certain type have been investigated numerically in this paper. The calculation is performed using ν2¯−f model with the numerical results of pressure fluctuation and heat transfer performance over 4 sample points being analyzed and compared with existing experimental data. It shows that the static pressure change has significant impact on heat transfer performance of the fore suction surface, especially in the active region of the shock waves formed from the trailing edge of upstream nuzzles. While, for the rear suction surface, the flow turbulence contributes more to the heat transfer change over the surface, due to the reduced pressure oscillation through this region. Phase shifted phenomenon across the surface can be observed for both pressure and heat transfer parameters, which should be a result of turbulence migration and wake passing across the airfoil. |
| first_indexed | 2024-03-12T06:40:29Z |
| format | Article |
| id | doaj.art-c7ce8e61c3b241ef9ce2ca93a6a3891d |
| institution | Directory Open Access Journal |
| issn | 2212-540X |
| language | English |
| last_indexed | 2024-03-12T06:40:29Z |
| publishDate | 2017-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Propulsion and Power Research |
| spelling | doaj.art-c7ce8e61c3b241ef9ce2ca93a6a3891d2023-09-03T01:04:41ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2017-06-01629110010.1016/j.jppr.2017.05.005Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascadeLiang Guo0Yuying Yan1Wanchen Sun2Jie Zhu3State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, ChinaFluids & Thermal Engineering Research Group, Faulty of Engineering, University of Nottingham, Nottingham NG7 2RD, United KingdomState Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, ChinaFluids & Thermal Engineering Research Group, Faulty of Engineering, University of Nottingham, Nottingham NG7 2RD, United KingdomThe effects of the periodical turbulence and pressure fluctuation on suction surface heat transfer over airfoils of a row of rotor blades with a certain type have been investigated numerically in this paper. The calculation is performed using ν2¯−f model with the numerical results of pressure fluctuation and heat transfer performance over 4 sample points being analyzed and compared with existing experimental data. It shows that the static pressure change has significant impact on heat transfer performance of the fore suction surface, especially in the active region of the shock waves formed from the trailing edge of upstream nuzzles. While, for the rear suction surface, the flow turbulence contributes more to the heat transfer change over the surface, due to the reduced pressure oscillation through this region. Phase shifted phenomenon across the surface can be observed for both pressure and heat transfer parameters, which should be a result of turbulence migration and wake passing across the airfoil.http://www.sciencedirect.com/science/article/pii/S2212540X1730024XGas turbine cascadeWater ramjetFlow unsteadinessPressure fluctuationHeat transferBlade suction surface |
| spellingShingle | Liang Guo Yuying Yan Wanchen Sun Jie Zhu Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade Propulsion and Power Research Gas turbine cascade Water ramjet Flow unsteadiness Pressure fluctuation Heat transfer Blade suction surface |
| title | Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade |
| title_full | Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade |
| title_fullStr | Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade |
| title_full_unstemmed | Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade |
| title_short | Numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade |
| title_sort | numerical investigation of flow unsteadiness and heat transfer on suction surface of rotating airfoils within a gas turbine cascade |
| topic | Gas turbine cascade Water ramjet Flow unsteadiness Pressure fluctuation Heat transfer Blade suction surface |
| url | http://www.sciencedirect.com/science/article/pii/S2212540X1730024X |
| work_keys_str_mv | AT liangguo numericalinvestigationofflowunsteadinessandheattransferonsuctionsurfaceofrotatingairfoilswithinagasturbinecascade AT yuyingyan numericalinvestigationofflowunsteadinessandheattransferonsuctionsurfaceofrotatingairfoilswithinagasturbinecascade AT wanchensun numericalinvestigationofflowunsteadinessandheattransferonsuctionsurfaceofrotatingairfoilswithinagasturbinecascade AT jiezhu numericalinvestigationofflowunsteadinessandheattransferonsuctionsurfaceofrotatingairfoilswithinagasturbinecascade |