| 黏性耗散对离心压缩机气动性能的影响 |
| |
| 引用本文： | 刘正先,吴仲义,王桂林.黏性耗散对离心压缩机气动性能的影响[J].工程热物理学报,2011(4):593-596. |
| |
| 作者姓名： | 刘正先 吴仲义 王桂林 |
| |
| 作者单位： | 天津大学机械工程学院力学系; |
| |
| 基金项目： | 博士点基金资助项目(No.20060056005) |
| |
| 摘 要： | 针对小流量系数离心压缩机,考察了流体的黏性耗散效应对流动损失的影响程度.通过压缩机模型级的实验测量和数值模拟,分别分析了压缩机级和叶轮在有、无黏性耗散影响下的流动性能.结果表明:当不考虑黏性耗散损失时,压缩机模型级具有较高效率;在黏性耗散效应的影响下,流动的多变效率约降低8个百分点.另外,不同的机壳间隙对多变效率也存在...
|
| 关 键 词： | 离心压缩机 小流量系数 数值模拟 黏性耗散 气动性能 |
Effection of Viscous Dissipation on Flow Performance of Centrifugal Compressor Stage |
| |
| LIU Zheng-Xian WU Zhong-Yi WANG Gui-Lin.Effection of Viscous Dissipation on Flow Performance of Centrifugal Compressor Stage[J].Journal of Engineering Thermophysics,2011(4):593-596. |
| |
| Authors: | LIU Zheng-Xian WU Zhong-Yi WANG Gui-Lin |
| |
| Institution: | LIU Zheng-Xian WU Zhong-Yi WANG Gui-Lin (School of Mechanical Engineering,Tianjin University,Tianjin 300072,China) |
| |
| Abstract: | To understanding the lower aerodynamic performance of centrifugal compressor stage with small design flowrate,the flow loss generated by viscous dissipation was investigated using the CFD method.Based on the test and the numerical simulation results of the actual compressor stage, the contours of temperature,the profiles of efficiency and pressure ratio for the model stage and impeller were analyzed.It indicated that the stage shown higher efficiency under taking no account of viscous dissipation,reversed,t... |
| |
| Keywords: | centrifugal compressor lower flow coefficient numerical simulation viscous dissipation aerodynamic performance |
| 本文献已被 CNKI 等数据库收录！ |
