| 离心通风机前弯叶轮叶片数的选取 |
| |
| 引用本文： | 成心德,叶桦.离心通风机前弯叶轮叶片数的选取[J].东北大学学报(自然科学版),1991(1). |
| |
| 作者姓名： | 成心德 叶桦 |
| |
| 作者单位： | 东北工学院热能工程系
(成心德)，东北工学院热能工程系(叶桦) |
| |
| 摘 要： | 比较前弯和后弯叶轮流道中的流动结构得知,前弯叶轮的叶片数应适当多于后弯叶轮.计算了12个和16个叶片的两个前弯叶轮中的边界层动量厚度,并对该两叶轮进行性能试验,证实了适当增加前弯叶轮的叶片数可以提高叶轮的压力和效率。
|
| 关 键 词： | 离心通风机 前弯叶轮 滑动系数 摩擦损失 涡流损失 |
On the Number of Forward-bent Impeller Blades in a Centrifugal Fan |
| |
| Cheng Xinde,Ye Hua.On the Number of Forward-bent Impeller Blades in a Centrifugal Fan[J].Journal of Northeastern University(Natural Science),1991(1). |
| |
| Authors: | Cheng Xinde Ye Hua |
| |
| Abstract: | A conclusion can be drawn from the comparison made between the flow behaviors in forward-bent and of backward-bent impeller passages,i.e.the number of blades of the former should appropriately be more than that of the latter . It is supported by the calculation of momentum thickness of boundarylayer and performance tests made for two forward-bent impellers-one is of 12blades and the other 16 blades. Results indicated that the impeller of 16 blades is higher in both pressure and efficiency. |
| |
| Keywords: | centrifugal fan forward-bent impeller slip factor friction loss eddyloss |
| 本文献已被 CNKI 等数据库收录！ |
