Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer
This article investigates the atomization characteristics of a streamlined direct-injection atomizer, which finishes the atomization process by coupling the air swirl with the conventional direct injector. First, we used experimental methods to focus on controlling its structural parameters and the...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/ijae/5288777 |
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| author | Dongbo Yan Diansheng Dong Gangyi Fang Weijia Guo Fei Xing |
| author_facet | Dongbo Yan Diansheng Dong Gangyi Fang Weijia Guo Fei Xing |
| author_sort | Dongbo Yan |
| collection | DOAJ |
| description | This article investigates the atomization characteristics of a streamlined direct-injection atomizer, which finishes the atomization process by coupling the air swirl with the conventional direct injector. First, we used experimental methods to focus on controlling its structural parameters and the liquid-to-gas flow ratio. We used a phase Doppler interferometer to measure the Sauter mean diameter (SMD) of the droplets and used a high-speed camera to capture the atomization field images. The experimental results showed that, under all test conditions, the overall range of the SMD was from 84 to 100 μm. It was found that a higher liquid-to-gas flow ratio resulted in a smaller SMD, a larger distance between the liquid and air outlets led to a larger SMD, and an increase in the axial angle of the liquid jet led to a smaller SMD. We found the influence parameters of the atomization characteristics of the streamlined direct-injection atomizer based on the dimensional analysis, namely, π theorem. In addition, a calculation formula for the SMD was proposed, with multiple linear regression conducted on the sample data from experiment. Based on the findings of this study, the streamlined direct-injection atomizer can be used to dynamically control its spray characteristics according to the requirements of aviation engine combustion chambers. |
| format | Article |
| id | doaj-art-72fe870521ac41ed969b0720aae1ceda |
| institution | OA Journals |
| issn | 1687-5974 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-72fe870521ac41ed969b0720aae1ceda2025-08-20T02:22:29ZengWileyInternational Journal of Aerospace Engineering1687-59742024-01-01202410.1155/ijae/5288777Experimental Study on the Spray Characteristics of Streamlined Direct-Injection AtomizerDongbo Yan0Diansheng Dong1Gangyi Fang2Weijia Guo3Fei Xing4School of Power and EnergySchool of Aerospace EngineeringSchool of Aerospace EngineeringSchool of Energy and Power EngineeringSchool of Aerospace EngineeringThis article investigates the atomization characteristics of a streamlined direct-injection atomizer, which finishes the atomization process by coupling the air swirl with the conventional direct injector. First, we used experimental methods to focus on controlling its structural parameters and the liquid-to-gas flow ratio. We used a phase Doppler interferometer to measure the Sauter mean diameter (SMD) of the droplets and used a high-speed camera to capture the atomization field images. The experimental results showed that, under all test conditions, the overall range of the SMD was from 84 to 100 μm. It was found that a higher liquid-to-gas flow ratio resulted in a smaller SMD, a larger distance between the liquid and air outlets led to a larger SMD, and an increase in the axial angle of the liquid jet led to a smaller SMD. We found the influence parameters of the atomization characteristics of the streamlined direct-injection atomizer based on the dimensional analysis, namely, π theorem. In addition, a calculation formula for the SMD was proposed, with multiple linear regression conducted on the sample data from experiment. Based on the findings of this study, the streamlined direct-injection atomizer can be used to dynamically control its spray characteristics according to the requirements of aviation engine combustion chambers.http://dx.doi.org/10.1155/ijae/5288777 |
| spellingShingle | Dongbo Yan Diansheng Dong Gangyi Fang Weijia Guo Fei Xing Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer International Journal of Aerospace Engineering |
| title | Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer |
| title_full | Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer |
| title_fullStr | Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer |
| title_full_unstemmed | Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer |
| title_short | Experimental Study on the Spray Characteristics of Streamlined Direct-Injection Atomizer |
| title_sort | experimental study on the spray characteristics of streamlined direct injection atomizer |
| url | http://dx.doi.org/10.1155/ijae/5288777 |
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