大连海事大学学报 >
2019 , Vol. 45 >Issue 2: 69 - 76
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2019.02.010
压气机扇形叶栅出口流场周向均匀性影响因素
收稿日期: 2018-09-30
修回日期: 2018-11-18
网络出版日期: 2018-11-18
基金资助
国家自然科学基金面上项目(51576024);国家自然科学基金重点项目(51436002).
Influence factors of the flow field circumferential uniformity at the sector cascade outlet of compressor
Received date: 2018-09-30
Revised date: 2018-11-18
Online published: 2018-11-18
王欢 , 孙鹏 , 徐林峰 , 黄龙盛 . 压气机扇形叶栅出口流场周向均匀性影响因素[J]. 大连海事大学学报, 2019 , 45(2) : 69 -76 . DOI: 10.16411/j.cnki.issn1006-7736.2019.02.010
Numerical simulation was used to study the influence of circumferential angle, structure of the guide plate and low-energy fluid suction on the sector cascade outlet uniformity and measurable number of runners. On the basis of considering the flow conditions in the laboratory wind tunnel, by comparing and analyzing the circumferential distribution of Mach number and flow angle at the outlet of guide vane and stator vane, the optimum design scheme of sector cascade was determined to be a design scheme with 110 degree sector circumferential angle, oblique guide plate and no suction. Results show that increasing the number of channels (sector angle) is helpful to improve the periodicity of sector cascade under the condition of subsonic flow, and the flow field with better periodicity can be obtained with inclined guide plate form and no suction scheme, and the number of measurable runner can be increased to 5.
Key words: compressor; sector cascade; periodicity; numerical simulation
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