Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection
The multistaged rotating swirling usually adopts the staged combustion and multiple point fuel supply, which has the advantages of high efficiency and low emissions. However, the high inlet temperature rise will cause autooxidation and fuel coking. Multiple fuel circuit mutual cooling technology by...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/8881460 |
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| _version_ | 1832555249308532736 |
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| author | Jingyu Zhang Xinyi Wang Yu Wu Xiaomin He |
| author_facet | Jingyu Zhang Xinyi Wang Yu Wu Xiaomin He |
| author_sort | Jingyu Zhang |
| collection | DOAJ |
| description | The multistaged rotating swirling usually adopts the staged combustion and multiple point fuel supply, which has the advantages of high efficiency and low emissions. However, the high inlet temperature rise will cause autooxidation and fuel coking. Multiple fuel circuit mutual cooling technology by using different flight conditions is an effective measure for the thermal protection of the nozzle. But the complicated fuel circuit configuration inevitably increase the flow resistance in the fuel jet. This paper presents an experimental investigation of flow resistance of a triple-stage rotating swirling nozzle, concerning the effects of various factors on total pressure loss and friction factor in nozzle fuel circuit. The factors include fuel velocity Vf,i, inlet temperature Tf,i, and inlet Reynolds number Ref,i. The results show that the complicated fuel-cooled structure made flow resistance of the pilot fuel circuit much bigger than the main one. Meanwhile, the empirical correlations between the friction factor and the inlet Reynolds number have been fitted, which can be the reference for engineering design. |
| format | Article |
| id | doaj-art-e40a93dd81f04b27934bed902a41f568 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-e40a93dd81f04b27934bed902a41f5682025-02-03T05:49:16ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/88814608881460Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal ProtectionJingyu Zhang0Xinyi Wang1Yu Wu2Xiaomin He3College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, ChinaThe multistaged rotating swirling usually adopts the staged combustion and multiple point fuel supply, which has the advantages of high efficiency and low emissions. However, the high inlet temperature rise will cause autooxidation and fuel coking. Multiple fuel circuit mutual cooling technology by using different flight conditions is an effective measure for the thermal protection of the nozzle. But the complicated fuel circuit configuration inevitably increase the flow resistance in the fuel jet. This paper presents an experimental investigation of flow resistance of a triple-stage rotating swirling nozzle, concerning the effects of various factors on total pressure loss and friction factor in nozzle fuel circuit. The factors include fuel velocity Vf,i, inlet temperature Tf,i, and inlet Reynolds number Ref,i. The results show that the complicated fuel-cooled structure made flow resistance of the pilot fuel circuit much bigger than the main one. Meanwhile, the empirical correlations between the friction factor and the inlet Reynolds number have been fitted, which can be the reference for engineering design.http://dx.doi.org/10.1155/2021/8881460 |
| spellingShingle | Jingyu Zhang Xinyi Wang Yu Wu Xiaomin He Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection International Journal of Aerospace Engineering |
| title | Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection |
| title_full | Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection |
| title_fullStr | Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection |
| title_full_unstemmed | Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection |
| title_short | Experimental Investigation on the Flow Resistance of a Staged Fuel Injector with Thermal Protection |
| title_sort | experimental investigation on the flow resistance of a staged fuel injector with thermal protection |
| url | http://dx.doi.org/10.1155/2021/8881460 |
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