| 叶轮机械减噪技术综述 |
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| 引用本文： | 林胜洋,竺晓程,沈昕,杜朝辉.叶轮机械减噪技术综述[J].新疆师范大学学报(自然科学版),2007,26(1):116-120. |
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| 作者姓名： | 林胜洋 竺晓程 沈昕 杜朝辉 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200030 |
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| 摘 要： | 风机噪声是飞机发动机噪声的主要成分。研究表明通过减少风机转子稳定尾迹的亏损和降低转子尾迹的不稳定水平,宽频噪声和离散噪声组分都有可能被削弱。但喷气方法使用不当反而会使尾迹区更加复杂,噪声更大。文章采用商用流体计算软件对采用尾部喷气方式下叶栅后流场的变化进行了数值模拟,用轴向速度和动量厚度衡量尾迹亏损,寻找能够较好地填平尾迹亏损区的方案。
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| 关 键 词： | 风机转子尾迹 尾部喷气 数值模拟 动量厚度 |
| 文章编号： | 23970300 |
| 修稿时间： | 11 10 2006 12:00AM |
A Review of Noise Reduction Technology of the Impeller Mechanism |
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| LIN Shengyang,ZHU Xiaocheng,SHEN Xin,DU Chaohui.A Review of Noise Reduction Technology of the Impeller Mechanism[J].Journal of Xinjiang Normal University(Natural Sciences Edition),2007,26(1):116-120. |
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| Authors: | LIN Shengyang ZHU Xiaocheng SHEN Xin DU Chaohui |
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| Institution: | College of Mechanics and Power Engineering, Shanghai J iaotong University, Shanghai 200030 |
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| Abstract: | This paper,by using the commercial fluid calculation software,makes a numerical simulation of the after-flow changes of the bottom cascade which has a jet tail,and measures the wake loss with the axial velocity and the momentum thickness in order to find out the program to compensate for the wake loss area. |
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| Keywords: | the wake of a fan rotor jet tail numerical simulation momentum thickness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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