摘要
采用商用软件NUMECAL中FINE/TURBO模块对低速大尺度离心压缩机(LSCC)在不同间隙条件下的内部流场进行了数值模拟。给出了压缩机叶轮出口处的通流速度分布以及不同截面二次流矢量、二次流流线等计算结果。结果表明:叶顶间隙的大小与泄漏流动的强度和通道内的尾迹区位置分布密切相关,泄漏流动与通道涡的相互作用严重影响了通道内的流场分布。
The Fine/Turbo module in NUMECAL commercial software is applicated to numerical simulate the inner flow field of Low-Speed Large-Scale centrifugal compressor with different clearance. The speed distribution of passage flow on the exit of compressor impeller and calculate results of quadric flow vector and quadric flow streamline with different sections are given. The results shows: the scale of top blade clearance is closely relative to the strength of leakage flow and distribution of tail trace position in passage, the leakage flow and passage vortex interaction has seriously affected the flow field distribution of inner passage.
出处
《风机技术》
2007年第2期11-13,33,共4页
Chinese Journal of Turbomachinery
关键词
离心式压缩机
泄漏流动
叶顶间隙
Centrifugal Compressor Leakage flow Top blade clearance
