摘要
使用CFD软件对某高能头半开式离心压缩机的级,在分别采用无叶扩压器和串列扩压器时进行了流动模拟和性能分析,给出了两种情况下的流场分布和性能比较。结果表明,在高能头系数的级中采用串列扩压器可以有效地改善叶轮出口流场,减少流动损失,提高压力恢复系数和级效率。
Flow simulation and performance analysis are conducted for the stage of a high energy head unshrouded centrifugal compressor with vaneless and tandem diffuser respectively using CFD software. The flow field distribution and performance comparison are offered in the two conditions. The result shows that the stage of high energy head coefficient with tandem diffuser can effectively improve the outlet flow field of impeller, reduce the flow loss and enhance pressure recovery coefficient and stage eoefficient.
出处
《风机技术》
2009年第3期8-10,14,共4页
Chinese Journal of Turbomachinery
关键词
离心式压缩机
半开式叶轮
串列扩压器
性能分析
centrifugal compressor
unshrouded impeller
tandem diffuser
performance analysis