摘要
通过CFD手段,比较了几个不同稠度的叶片扩压器性能与内部流场损失分布,分析了稠度的变化对叶片扩压器喉部流动产生的影响,并对叶片扩压器通过减小叶片数和减小叶片弦长来改变稠度的两种不同方法进行分析,发现通过减小叶片数的方法能够获得较好的压缩机性能。
The performance and loss distribution in internal flow field of vaned diffuser with different solidity are studied through CFD software. The change of solidity has great impact on the flow in throat area. It is found that the method of reducing vane number with vaned diffuser to change solidity can obtain better compressor performance by comparing the method of reducing vane chord length.
出处
《风机技术》
2010年第3期3-6,共4页
Chinese Journal of Turbomachinery
基金
上海市重点学科建设项目(J50501)
国家科技支撑计划项目(2008BAF34B15)
关键词
离心式压缩机
叶片扩压器
稠度
弦
长
数值模拟
centrifugal compressor
vaned diffuser
solidity
chord length
numerical simulation
