Analysis on influence of self-fan cooling motor on fan aerodynamics
With the development of multi electric/all electric aircraft, the degree of aircraft secondary energy electrification is becoming higher and higher. As the core component of the electrical system, the motor presents the trend of small volume and high-power density. The heat dissipation problem of co...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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EDP Sciences
2023-10-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2023/05/jnwpu2023415p915/jnwpu2023415p915.html |
| _version_ | 1827372211754762240 |
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| author | ZHU Lei LIU Hanru LI Linfeng WANG Shiguang ZHAO Yanchen WANG Yangang |
| author_facet | ZHU Lei LIU Hanru LI Linfeng WANG Shiguang ZHAO Yanchen WANG Yangang |
| author_sort | ZHU Lei |
| collection | DOAJ |
| description | With the development of multi electric/all electric aircraft, the degree of aircraft secondary energy electrification is becoming higher and higher. As the core component of the electrical system, the motor presents the trend of small volume and high-power density. The heat dissipation problem of compact motor is becoming more and more serious. At present, the self-driven fan cooling system is widely used in aircraft motors. In this paper, the axial fan cooling system of an aero generator is taken as the research object, and the changes of fan flow field and aerodynamic characteristics in the fan motor coupling model of the isolated fan and the installed motor are analyzed by using three-dimensional computational fluid simulation. At the same time, the influence of the change of the axial distance between the fan and the motor on the aerodynamic performance is also studied. The analysis of the simulation results shows that the close coupling between the motor and the fan components greatly affects the flow structure in the fan, resulting in the distortion potential effect on the fan outlet section. The fan flow field appears the blade root reflux, the channel vortex in the blade and the expansion of the corner separation area. With the increase of the axial distance between the motor and the fan, the influence of the motor on the flow in the fan gradually approaches the flow blocking effect. |
| first_indexed | 2024-03-08T10:54:13Z |
| format | Article |
| id | doaj.art-58cc1a1bc38c489499d0104005260cc8 |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-08T10:54:13Z |
| publishDate | 2023-10-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-58cc1a1bc38c489499d0104005260cc82024-01-26T16:39:28ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252023-10-0141591592310.1051/jnwpu/20234150915jnwpu2023415p915Analysis on influence of self-fan cooling motor on fan aerodynamicsZHU Lei0LIU Hanru1LI Linfeng2WANG Shiguang3ZHAO Yanchen4WANG Yangang5School of Power and Energy, Northwestern Polytechnical UniversitySchool of Power and Energy, Northwestern Polytechnical UniversitySchool of Power and Energy, Northwestern Polytechnical UniversitySchool of Power and Energy, Northwestern Polytechnical UniversitySchool of Power and Energy, Northwestern Polytechnical UniversitySchool of Power and Energy, Northwestern Polytechnical UniversityWith the development of multi electric/all electric aircraft, the degree of aircraft secondary energy electrification is becoming higher and higher. As the core component of the electrical system, the motor presents the trend of small volume and high-power density. The heat dissipation problem of compact motor is becoming more and more serious. At present, the self-driven fan cooling system is widely used in aircraft motors. In this paper, the axial fan cooling system of an aero generator is taken as the research object, and the changes of fan flow field and aerodynamic characteristics in the fan motor coupling model of the isolated fan and the installed motor are analyzed by using three-dimensional computational fluid simulation. At the same time, the influence of the change of the axial distance between the fan and the motor on the aerodynamic performance is also studied. The analysis of the simulation results shows that the close coupling between the motor and the fan components greatly affects the flow structure in the fan, resulting in the distortion potential effect on the fan outlet section. The fan flow field appears the blade root reflux, the channel vortex in the blade and the expansion of the corner separation area. With the increase of the axial distance between the motor and the fan, the influence of the motor on the flow in the fan gradually approaches the flow blocking effect.https://www.jnwpu.org/articles/jnwpu/full_html/2023/05/jnwpu2023415p915/jnwpu2023415p915.html风冷系统部件耦合影响气动影响数值计算 |
| spellingShingle | ZHU Lei LIU Hanru LI Linfeng WANG Shiguang ZHAO Yanchen WANG Yangang Analysis on influence of self-fan cooling motor on fan aerodynamics Xibei Gongye Daxue Xuebao 风冷系统 部件耦合影响 气动影响 数值计算 |
| title | Analysis on influence of self-fan cooling motor on fan aerodynamics |
| title_full | Analysis on influence of self-fan cooling motor on fan aerodynamics |
| title_fullStr | Analysis on influence of self-fan cooling motor on fan aerodynamics |
| title_full_unstemmed | Analysis on influence of self-fan cooling motor on fan aerodynamics |
| title_short | Analysis on influence of self-fan cooling motor on fan aerodynamics |
| title_sort | analysis on influence of self fan cooling motor on fan aerodynamics |
| topic | 风冷系统 部件耦合影响 气动影响 数值计算 |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2023/05/jnwpu2023415p915/jnwpu2023415p915.html |
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