| 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].实验流体力学,2012,26(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，国防科学技术预先研究空动力学项目 |
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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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| PENG Qiang
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LIAO Da-xiong
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QING Hong-gang
,
YI Xing-you.The primary experimental research on the aerodynamic designing of semi-flexible nozzle[J].Experiments and Measur in Fluid Mechanics,2012,26(3):101-106. |
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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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