Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer
Pressure swirl atomizers are widely used in gas turbine combustor; this paper is aimed at researching the effect of low ambient pressure (0.1 MPa to 0.01 MPa, lower than an atmosphere) on the spray cone angle of pressure swirl atomizer. The spray angle is captured by high-speed photography; then, an...
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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/10.1155/2021/5539231 |
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| author | Zhengyan Guo Yi Jin Kai Zhang Kanghong Yao Yunbiao Wang Di Wu Xiaomin He Mei Zheng |
| author_facet | Zhengyan Guo Yi Jin Kai Zhang Kanghong Yao Yunbiao Wang Di Wu Xiaomin He Mei Zheng |
| author_sort | Zhengyan Guo |
| collection | DOAJ |
| description | Pressure swirl atomizers are widely used in gas turbine combustor; this paper is aimed at researching the effect of low ambient pressure (0.1 MPa to 0.01 MPa, lower than an atmosphere) on the spray cone angle of pressure swirl atomizer. The spray angle is captured by high-speed photography; then, an image post program is used to process the spray angle magnitude. A mathematical model of a single droplet’s movement and trajectory based on force analysis is proposed to validate the spray angle variation. The maximum variation of the spray cone angle, which is observed when fuel supply pressure drop through the atomizer is 1 MPa as the ambient pressure decreases from 0.1 MPa to 0.01 MPa, is found to be 23.9%. The experimental results show that the spray cone angle is expected to increase with the ambient pressure decrease; meanwhile, mathematical results agree well with this trend. |
| format | Article |
| id | doaj-art-d5ee30f2023f4f87a373198bd3b4b915 |
| 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-d5ee30f2023f4f87a373198bd3b4b9152025-02-03T01:27:19ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/55392315539231Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl AtomizerZhengyan Guo0Yi Jin1Kai Zhang2Kanghong Yao3Yunbiao Wang4Di Wu5Xiaomin He6Mei Zheng7School of Power and Energy, Northwestern Polytechnical University, Xian, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaNanjing Engineering Institute of Aircraft Systems, AVIC/Aviation Key Laboratory of Science Technology on Aero Electromechanical System Integration, Nanjing, ChinaPressure swirl atomizers are widely used in gas turbine combustor; this paper is aimed at researching the effect of low ambient pressure (0.1 MPa to 0.01 MPa, lower than an atmosphere) on the spray cone angle of pressure swirl atomizer. The spray angle is captured by high-speed photography; then, an image post program is used to process the spray angle magnitude. A mathematical model of a single droplet’s movement and trajectory based on force analysis is proposed to validate the spray angle variation. The maximum variation of the spray cone angle, which is observed when fuel supply pressure drop through the atomizer is 1 MPa as the ambient pressure decreases from 0.1 MPa to 0.01 MPa, is found to be 23.9%. The experimental results show that the spray cone angle is expected to increase with the ambient pressure decrease; meanwhile, mathematical results agree well with this trend.http://dx.doi.org/10.1155/2021/5539231 |
| spellingShingle | Zhengyan Guo Yi Jin Kai Zhang Kanghong Yao Yunbiao Wang Di Wu Xiaomin He Mei Zheng Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer International Journal of Aerospace Engineering |
| title | Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer |
| title_full | Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer |
| title_fullStr | Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer |
| title_full_unstemmed | Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer |
| title_short | Effect of Low Ambient Pressure on Spray Cone Angle of Pressure Swirl Atomizer |
| title_sort | effect of low ambient pressure on spray cone angle of pressure swirl atomizer |
| url | http://dx.doi.org/10.1155/2021/5539231 |
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