| 圆锥形喷嘴结构参数设计研究 |
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| 引用本文： | 黄中华,谢雅.圆锥形喷嘴结构参数设计研究[J].机械设计,2011,28(12). |
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| 作者姓名： | 黄中华 谢雅 |
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| 作者单位： | 1. 湖南工程学院机械工程学院,湖南湘潭411101;中南大学机电工程学院,湖南长沙411101
2. 湖南工程大学计算机与通讯学院,湖南湘潭,411101 |
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| 基金项目： | 国家自然科学基金资助项目(50804054) |
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| 摘 要： | 为了获取圆锥形喷嘴结构参数与其工作性能的作用规律,建立了喷嘴内部流场的数值仿真模型.通过仿真研究获取了喷嘴结构参数与喷嘴内部射流特性的作用规律.仿真结果表明:喷嘴的收缩角α和长径比cp决定了喷嘴射流的最大出口速度和喷嘴出口射流速度在径向的变化幅值.随着α的增加,喷嘴射流的最大出口速度先增大后减小.当α较小时,喷嘴出口射流速度在径向基本保持不变.当α较大时,喷嘴出口射流速度在径向变化明显.随着cp的增加,喷嘴射流的最大出口速度先增大后减小.当cp较小时,喷嘴出口射流速度在径向变化明显.当cp较大时,喷嘴出口射流速度在径向基本保持不变.圆锥形喷嘴的最优结构参数为α=40°,cp=3.对不同α的喷嘴性能进行了实验测试,实验结果表明:当α =40°时,喷嘴产生的射流出口速度最大.
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| 关 键 词： | 圆锥形喷嘴 结构参数 设计研究 |
Research on structure parameters of conical nozzle |
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| HUANG Zhong-hua
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XIE Ya.Research on structure parameters of conical nozzle[J].Journal of Machine Design,2011,28(12). |
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| Authors: | HUANG Zhong-hua XIE Ya |
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| Affiliation: | HUANG Zhong-hua1,2,XIE Ya3(1.College of Mechanical Engineering,Hunan Institute of Engineering,Xiangtan 411101,China,2.School of Mechanical and electrical engineering,Central South University,Changsha 410083,3.College of Computer and Communication,China) |
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| Abstract: | In order to obtain the interacting rules between structure parameters of nozzle and its working performance,the interior flow field numerical simulation model of conical nozzle was established.Interacting rules between structure parameters of nozzle and its working performance were obtained with simulation research.The following conclusions were obtained with simulation results: the maximum outlet velocity of nozzle and the variation range of nozzle outlet radial velocity were determined by nozzle shrink an... |
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| Keywords: | conical nozzle structure parameter design research |
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