| 半柔壁喷管初步实验研究 |
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| 引用本文： | 彭强,廖达雄,秦红岗,易星佑.半柔壁喷管初步实验研究[J].气动实验与测量控制,2012(3):101-106. |
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| 作者姓名： | 彭强 廖达雄 秦红岗 易星佑 |
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| 作者单位： | 中国空气动力研究与发展中心空气动力学国家重点实验室,四川绵阳621000 |
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| 基金项目： | 空气动力学国家重点实验室基金（SKLA2009A0103）;国防科学技术预先研究空动力学项目（513130602） |
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| 摘 要： | 为了验证跨超声速风洞半柔壁喷管的气动设计结果，在试验平台上经过对喷管的动调，完成了半柔壁喷管的性能测试研究。得到如下初步结论：所使用的半柔壁喷管气动设计方法有效可行，马赫数调节范围及喷管流场均匀性指标达到设计要求；通过对喷管的动调，喷管第一菱形区的马赫数均方根偏差可降低30％～40％；在风洞吹风过程中，可实现喷管马赫数的连续变化功能，在喷管型面调节速度适当时，试验段流场均匀性指标与喷管固定型面时相当。
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| 关 键 词： | 试验研究 超声速风洞 流场品质 半柔壁喷管 喷管设计 |
The primary experimental research on the aerodynamic designing of semi-flexible nozzle |
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| Authors: | PENG Qiang LIAO Da-xiong QING Hong-gang YI Xing-you |
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| Institution: | (State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China) |
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| Abstract: | To verify the aerodynamic design of semi-flexible nozzle in supersonic wind tunnel, the evaluation experiments were accomplished in the test. The conclusions have been drawn that the engineering design methods to semi-flexible nozzle has been demonstrated. The range of Mach number of semi-flexible nozzle and uniformity of velocity in test section have met the requirements of this project. The mean square root of Mach number may be cut off by 30% to 40% through the dynamic debugging to the semi-flexible nozzle. The capability of changing Mach number continuously during operation of wind tunnel has come true. |
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| Keywords: | experiment supersonic wind tunnel flow field quality semi-flexible nozzle nozzle design |
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