| 静叶轮毂间隙对压气机角区失速的控制 |
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| 引用本文： | 廖吉香,姜斌,吕从鹏,邱毅,王国强.静叶轮毂间隙对压气机角区失速的控制[J].航空动力学报,2017,32(7):1782-1792. |
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| 作者姓名： | 廖吉香 姜斌 吕从鹏 邱毅 王国强 |
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| 作者单位： | 哈尔滨工程大学 动力与能源工程学院,哈尔滨 150001 |
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| 基金项目： | 国家自然科学基金（51476039）; 中央高校基本科研业务费专项资金（HEUCF150304） |
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| 摘 要： | 为了研究静叶轮毂间隙对压气机角区失速的控制作用,以某1.5级轴流压气机为研究对象,采用三维数值模拟方法研究静叶轮毂整体间隙和部分间隙对压气机低工况点和设计点气动性能的影响。结果表明:整体间隙通过产生泄漏流削弱起始于轮毂表面终止于静叶吸力面的“龙卷风”旋涡的能量源,达到了控制角区失速提高压气机低工况点性能的目的,但间隙产生的泄漏损失会降低设计点性能。而部分间隙明显优于整体间隙,部分间隙的位置越靠近尾缘,低工况点性能提高的幅度越大,同时对设计点的损害越小。TAI2方案的低工况点流量增加了0.89kg/s,效率提高了1.25%,而设计点效率不降低。另一方面,只有当部分间隙增大到一定尺寸后间隙泄漏流才足以抑制角区失速团。
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| 关 键 词： | 角区失速 整体间隙 部分间隙 压气机低工况点 压气机设计点 |
| 收稿时间： | 2015/12/30 0:00:00 |
Control of hub-corner stall in a compressor with stator hub gap |
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| LIAO Jixiang,JIANG Bin,L Congpeng,QIU Yi,WANG Guoqiang,ZHENG Qun.Control of hub-corner stall in a compressor with stator hub gap[J].Journal of Aerospace Power,2017,32(7):1782-1792. |
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| Authors: | LIAO Jixiang JIANG Bin L Congpeng QIU Yi WANG Guoqiang ZHENG Qun |
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| Affiliation: | LIAO Jixiang,JIANG Bin,L(U) Congpeng,QIU Yi,WANG Guoqiang,ZHENG Qun |
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| Abstract: | To research the control of hub-corner stall in a compressor with stator hub gap,a 1.5 stage axial flow compressor was studied.The effects of integral hub gap and partial hub gap on the aerodynamic performance of compressor at low operating point and design point were studied by three-dimensional numerical simulation method.The results show that the integral hub gap can restrain the hub-corner stall and improve the performance of compressor,because the energy source of the "tornado" vortex is weakened by the leakage flow,and the "tornado" vortex begins from the hub surface and ends at the suction surface,but the performance of compressor is reduced due to the leakage loss produced by stator hub gapat design point.And the partial hub gap is significantly better than the integral hub gap,with the position of partial hub gap moving backward,the performance of compressor is gradually improved at low-operating point,and the damage to the performance at design point is gradually reduced.For example,the mass flow rate of TAI2 scheme increased by 0.89 kg/s and the efficiency increased by 1.25 ％ at low-operating point,and the efficiency of design point remained unchanged.In addition,only when the partial hub gap increases to a certain size could the hub-corner stall be restrained by enough leakage flow. |
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| Keywords: | hub-corner stall integral hub gap partial hub gap low-operating point of compressor design point of compressor |
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