Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades
This paper presents an experimental study of the optimization of blade skew in low pressure axial fan. Using back propagation (BP) neural network and genetic algorithm (GA), the optimization was performed for a radial blade. An optimized blade is obtained through blade forward skew. Measurement...
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| Format: | Article |
| Language: | English |
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Wiley
2007-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2007/85275 |
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| _version_ | 1832551744971735040 |
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| author | Li Yang Ouyang Hua Du Zhao-Hui |
| author_facet | Li Yang Ouyang Hua Du Zhao-Hui |
| author_sort | Li Yang |
| collection | DOAJ |
| description | This paper presents an experimental study of the optimization of blade skew in low pressure axial
fan. Using back propagation (BP) neural network and genetic algorithm (GA), the optimization was
performed for a radial blade. An optimized blade is obtained through blade forward skew. Measurement of
the two blades was carried out in aerodynamic and aeroacoustic performance. Compared to the
radial blade, the optimized blade demonstrated improvements in efficiency, total pressure ratio,
stable operating range, and aerodynamic noise. Detailed flow measurement was performed in outlet
flow field for investigating the responsible flow mechanisms. The optimized blade can cause
a spanwise redistribution of flow toward the blade midspan and reduce tip loading. This results in
reduced significantly total pressure loss near hub and shroud endwall region, despite the slight
increase of total pressure loss at midspan. In addition, the measured spectrums show that the
broadband noise of the impeller is dominant. |
| format | Article |
| id | doaj-art-87092cd0bc05413188dd361bad1539d6 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2007-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-87092cd0bc05413188dd361bad1539d62025-02-03T06:00:35ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342007-01-01200710.1155/2007/8527585275Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed BladesLi Yang0Ouyang Hua1Du Zhao-Hui2School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, ChinaSchool of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, ChinaSchool of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, ChinaThis paper presents an experimental study of the optimization of blade skew in low pressure axial fan. Using back propagation (BP) neural network and genetic algorithm (GA), the optimization was performed for a radial blade. An optimized blade is obtained through blade forward skew. Measurement of the two blades was carried out in aerodynamic and aeroacoustic performance. Compared to the radial blade, the optimized blade demonstrated improvements in efficiency, total pressure ratio, stable operating range, and aerodynamic noise. Detailed flow measurement was performed in outlet flow field for investigating the responsible flow mechanisms. The optimized blade can cause a spanwise redistribution of flow toward the blade midspan and reduce tip loading. This results in reduced significantly total pressure loss near hub and shroud endwall region, despite the slight increase of total pressure loss at midspan. In addition, the measured spectrums show that the broadband noise of the impeller is dominant.http://dx.doi.org/10.1155/2007/85275 |
| spellingShingle | Li Yang Ouyang Hua Du Zhao-Hui Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades International Journal of Rotating Machinery |
| title | Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades |
| title_full | Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades |
| title_fullStr | Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades |
| title_full_unstemmed | Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades |
| title_short | Optimization Design and Experimental Study of Low-Pressure Axial Fan with Forward-Skewed Blades |
| title_sort | optimization design and experimental study of low pressure axial fan with forward skewed blades |
| url | http://dx.doi.org/10.1155/2007/85275 |
| work_keys_str_mv | AT liyang optimizationdesignandexperimentalstudyoflowpressureaxialfanwithforwardskewedblades AT ouyanghua optimizationdesignandexperimentalstudyoflowpressureaxialfanwithforwardskewedblades AT duzhaohui optimizationdesignandexperimentalstudyoflowpressureaxialfanwithforwardskewedblades |