Experimental investigation about the effect of non-axisymmetric wake impact on a low speed axial compressor
Experimental investigation about the effect of non-axisymmetric wake impact on a low speed axial compressor
复制标题
非轴对称尾流冲击对低速轴流压气机影响的实验研究
DOI：
10.1007/s10409-009-0280-4
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发表时间：
2010-04
影响因子：
3.5
通讯作者：
Li, Zhiping
中科院分区：
文献类型：
--
作者：
Liu, Jianyong;Lu, Yajun;Li, Zhiping
通过轴对称尾流冲击实验确定了低速轴流压气机的最佳激振频率，并进行了非轴对称尾流冲击实验。当进口导叶的数量和周向分布合理时，非轴对称进口导叶尾迹可以对其下游转子流场产生有利的非定常激振作用，提高压气机性能。在本文中，四个非轴对称尾流冲击计划被发现工作优于轴对称尾流冲击计划。与基本方案相比，最佳非轴对称方案压气机的峰值效率提高了1.1%，总压上升了2%，失速裕度提高了4.4%。非轴对称方案优于轴对称方案的主要原因是导叶尾迹引起的非定常激励信号的变化。非轴对称平面除了产生高频分量外，还产生了有益的低频方波激励信号和其他二次频率分量。与轴对称方案相比，非轴对称方案产生的多频激励尾迹更容易与间隙涡、通道涡和脱落涡等复杂涡系形成耦合关系。
Non-axisymmetric wake impact experiments were carried out after the best exciting frequency for a low speed axial compressor had been found by axisymmetric wake impact experiments. When the number and circumferential distribution of inlet guide vanes (IGV) are logical the wakes of non-axisymmetric IGVs can exert beneficial unsteady exciting effect on their downstream rotor flow fields and improve the compressor’s performance. In the present paper, four non-axisymmetric wake impact plans were found working better than the axisymmetric wake impact plan. Compared with the base plan, the best non-axisymmetric plan increased the compressor’s peak efficiency, and the total pressure rise by 1.1 and 2%, and enhanced the stall margin by 4.4%. The main reason why non-axisymmetric plans worked better than the axisymmetric plan was explained as the change of the unsteady exciting signal arising from IGV wakes. Besides the high-frequency components, the non-axisymmetric plan generated a beneficial low-frequency square-wave exciting signal and other secondary frequency components. Compared with the axisymmetric plan, multi-frequency exciting wakes arising from the non-axisymmetric plans are easier to get coupling relation with complex vortices such as clearance vortices, passage vortices and shedding vortices.
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影响因子：
1.7
作者：
J. Horlock
通讯作者：
J. Horlock
影响因子：
1.7
作者：
M. Graf;T. S. Wong;E. Greitzer;F. E. Marble;C. Tan;Hyoun-Woo Shin;D. Wisler
通讯作者：
M. Graf;T. S. Wong;E. Greitzer;F. E. Marble;C. Tan;Hyoun-Woo Shin;D. Wisler
DOI：
10.1115/2001-gt-0505
发表时间：
2001-06
期刊：
--
影响因子：
--
作者：
Martin George Rose;N. Harvey;P. Seaman;D. Newman;D. McManus
通讯作者：
Martin George Rose;N. Harvey;P. Seaman;D. Newman;D. McManus
DOI：
10.1080/10020070512331343130
发表时间：
2005-10
期刊：
Progress in Natural Science
影响因子：
--
作者：
Zheng Xinqian;Z. Sheng;Hou Anping;Xiong Jinsong
通讯作者：
Zheng Xinqian;Z. Sheng;Hou Anping;Xiong Jinsong
影响因子：
1.7
作者：
Xinqian Zheng;Xiaoping Zhou;Sheng Zhou
通讯作者：
Xinqian Zheng;Xiaoping Zhou;Sheng Zhou