| 小叶片弦长对跨声轴流风扇气动性能的影响 |
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| 引用本文： | 孙玺淼,颜培刚,王松涛,王仲奇.小叶片弦长对跨声轴流风扇气动性能的影响[J].航空动力学报,2007,22(12):2050-2054. |
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| 作者姓名： | 孙玺淼 颜培刚 王松涛 王仲奇 |
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| 作者单位： | 哈尔滨工业大学,推进理论及技术研究所,哈尔滨,150001 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 针对某型跨声轴流风扇大小叶片转子,通过优化去除小叶片中弧线形状的影响,对比分析了最高效率点工况下小叶片弦长对转子气动性能的影响.发现小叶片前缘膨胀波可以调整大叶片壁面附面层逆压力梯度段的长度和逆压梯度的强度.正确选择小叶片前缘位置可以降低附面层损失,抑制大叶片后部分离,合理分配气动负荷.
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| 关 键 词： | 航空、航天推进系统 轴流跨声风扇 大小叶片 弦长 激波 小叶片 弦长 轴流风扇 气动性能 影响 rotor axial fan length chord splitter influence 气动负荷 合理分配 分离 损失 前缘位置 选择 强度 逆压梯度 长度 |
| 文章编号： | 1000-8055(2007)12-2050-05 |
| 收稿时间： | 2006/11/13 0:00:00 |
| 修稿时间： | 2006年11月13 |
Investigation of the influence of splitter chord length on the transonic axial fan rotor |
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| SUN Xi-miao,YAN Pei-gang,WANG Song-tao and WANG Zhong-qi.Investigation of the influence of splitter chord length on the transonic axial fan rotor[J].Journal of Aerospace Power,2007,22(12):2050-2054. |
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| Authors: | SUN Xi-miao YAN Pei-gang WANG Song-tao and WANG Zhong-qi |
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| Institution: | Institute of Propulsion Theory and Technology, Harbin Institute of Technology, Harbin 150001, China;Institute of Propulsion Theory and Technology, Harbin Institute of Technology, Harbin 150001, China;Institute of Propulsion Theory and Technology, Harbin Institute of Technology, Harbin 150001, China;Institute of Propulsion Theory and Technology, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | An axial transonic fan with splitter was designed.An optimization method was used to eliminate the influence of the splitter camber shape.The effect of splitter chord length on the aerodynamic performance of the fan rotor was analyzed under the maximum efficiency condition.The results show that the leading edge expanding wave can adjust the length of the main blade boundary layer negative gradient and its strength.Correctly selecting the splitter leading edge position can reduce the boundary loss,control the separation at the rear part of the main blade and produce optimal aerodynamic load distribution. |
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| Keywords: | aerospace propulsion system axial transonic fan splitter chord length shock wave |
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