大连海事大学学报 >
2016 , Vol. 42 >Issue 3: 102 - 110
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2016.03.017
轮毂型式对旋转冲压压缩转子性能的影响
收稿日期: 2015-12-01
修回日期: 2016-01-21
网络出版日期: 2016-01-22
基金资助
国家自然科学基金资助项目(51406022)；辽宁省自然科学基金资助项目（2013020129）；辽宁省高校创新团队支持计划资助（LT2015004）.
Effects of hub configuration on ram-rotor performance
Received date: 2015-12-01
Revised date: 2016-01-21
Online published: 2016-01-22
孙云 , 韩吉昂 , 钟兢军 , 管健 . 轮毂型式对旋转冲压压缩转子性能的影响[J]. 大连海事大学学报, 2016 , 42(3) : 102 -110 . DOI: 10.16411/j.cnki.issn1006-7736.2016.03.017
In order to improve the overall performance of the ram-rotor, the modifications with different compression ramp and diffuser surface were obtained by changing the hub shape along flow direction. Then ANASYS-FLUENT 6.3 was adopted to simulate the flow field of different schemes. Results show that the shock wave structure can be changed by changing the curvature of compression ramp, and flow structure near the hub and overall performance of the ram-rotor would be affected. The total pressure ratio of the ram-rotor will increase with the length of bearing section increasing. The ram-rotor has higher efficiency and total pressure recovery coefficient when diffuser surface is longer. Case Length-5 has the best performance whose efficiency and total pressure ratio increase respectively by 3.32% and 7.31% compared with the original scheme.
Key words： ram-rotor; hub configuration; performance; flow structure; numerical study
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