| 特高比转速离心风机气动设计和性能优化 |
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| 引用本文： | 庞海宇,沈炳耘,李嵩. 特高比转速离心风机气动设计和性能优化[J]. 风机技术, 2011, 0(4): 3-6 |
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| 作者姓名： | 庞海宇 沈炳耘 李嵩 |
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| 作者单位： | 1. 内蒙古工业大学
2. 清华大学 |
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| 摘 要： | 3-108离心风机独具流量大、全压低和比转速高等特殊性,会带来大的流动损失.针对这种情况,对3-108样机进行两次优化设计和试验.首轮样机试验,最高效率达82％,并发现选择流量和用户设计流量比高达124％.根据首轮样机的数据分析,又设计了第二轮样机,预估性能较好.
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| 关 键 词： | 离心风机 比转速 数值模拟 气动设计 |
Aerodynamic Design and Performance Optimization for a Centrifugal Fan with Very High Specific Speed |
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| Abstract: | The type of 3-108 fan has the specificity of large flow,low total pressure and high specific speed,which will bring great flow losses.According to the situation,the optimized design and test is carried out for 3-108 model fan two times.Fortunately,a maximum fan efficiency of 82% is got for the first model fan and the ratio of election design flowrate to the original one is found as 124%.Then the second model fan is designed according to the analysis of the data got from the first model.Its prediction perfor... |
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| Keywords: | centrifugal fan specific speed numerical simulation aerodynamic design |
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