本文针对离心压气机采用突扩转接段后的设计问题,初步探讨了其内部流动规律,进行了型线的优化设计.首先进行的子午面计算,确定了扩压器的型线,然后对无叶扩压器作了三维数值模拟,保证了叶片进口参数的平滑均匀.最后完成了带叶扩压器的三维计算.数值计算结果表明,出口马赫数、总压恢复系数和出气角均达到了设计要求.设计的完成为复杂扩压系统的设计与数值模拟打下了良好基础.
参考文献
| [1] | Dawes W N .A Simulation of the Unsteady Interaction of a Centrifugal Impeller with its Vaned Diffuser: Flows Analysis[Z].ASME 94-GT-105,1994. |
| [2] | Krain H .A Study on Centrifugal Impellor and Diffuser Flow[Z].ASME 81-GT-9,1981. |
| [3] | Senior A .An Experimental Study of a Diffuser in Ground Effect[R].AIAA 2000-0118,2000. |
| [4] | Mayer D W .3D Subsonic Diffuser Design and Analysis[R].AIAA 98-3418,1998. |
| [5] | Anabtawi A J et al.An Experimental Study of Vortex Generators in Boundary Layer Ingesting Diffusers with a Centerline Offset[R].AIAA 99-2110,1999. |
| [6] | Lefantzi S N .Automated Design Optimization for Subsonic Diffusers[R].AIAA 2001-3294,2001. |
| [7] | 翁培奋,何友声.扩压器内二维湍流流动的时间推进数值解[J].航空学报,1995(03):340. |
| [8] | Benini E.Design Optimization of Vaned Diffusers for Centrifugal Compressors Using Genetic Algorithms[M].AIAA 2001-2583,2001 |
| [9] | Nandy R et al.Experimental Investigation of Flow in Gas Turbine Diffusers[Z].AIAA 2000-2536,2000. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%