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论文:2021,Vol:39,Issue(4):786-793 |
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引用本文： |
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邓海均, 熊波, 罗新福, 洪少尊, 刘奇, 蒲泓宇, 刘为杰. 跨声速风洞试验段马赫数静压探针移测方法初探[J]. 西北工业大学学报 |
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DENG Haijun, XIONG Bo, LUO Xinfu, HONG Shaozun, LIU Qi, PU Hongyu, LIU Weijie. A preliminary study on static pressure probe mobile measurement method for flow field in transonic wind tunnel[J]. Northwestern polytechnical university |
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| 跨声速风洞试验段马赫数静压探针移测方法初探 |
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| 邓海均, 熊波, 罗新福, 洪少尊, 刘奇, 蒲泓宇, 刘为杰 |
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| 中国空气动力研究与发展中心 高速空气动力研究所, 四川 绵阳 621000 |
| 摘要: |
| 跨声速风洞模型区核心流马赫数分布特性是评价风洞流场性能品质的重要指标，通常采用长轴向探测管进行测量。为了模拟无干扰的来流特性，一般长轴向探测管都会从支架段延伸至风洞收缩段，因此通常都具有较长的尺寸、较多的静压测点以及较小的堵塞度要求。为了更精确地测量跨声速风洞模型区核心流马赫数分布，设计了相对于长轴向探测管堵塞度更小、尺寸更短的静压探针。在风洞流场判稳的基础上，由移测机构带动静压探针移测试验段模型区核心流的马赫数分布，通过风洞试验对其测值特性开展了相关研究。试验结果表明，当Ma≤0.95时，静压探针采用移测方式获得的核心流马赫数分布总体规律及量值与长轴向探测管测量结果基本相当，但是静压探针在部分流场细节上与长轴向探测管存在差异，主要表现为：静压探针马赫数测量波动更小，精度更高，均匀性指标更好。 |
| 关键词:
跨声速风洞
流场品质
静压探针
移测
马赫数分布
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| A preliminary study on static pressure probe mobile measurement method for flow field in transonic wind tunnel |
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| DENG Haijun, XIONG Bo, LUO Xinfu, HONG Shaozun, LIU Qi, PU Hongyu, LIU Weijie |
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| High-Speed Aerodynamic Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China |
| Abstract: |
| The axial Mach number distribution of the core flow for model in a transonic wind tunnel is an important index to evaluate the performance of the flow field, which is usually measured by the centerline probe. In order to simulate the incoming flow characteristics without interference, the probe will extend from the support section to the shrinkage section, so the probe usually must has longer inches, more static pressure measuring points and smaller blockage requirements. In order to study the influence of the points of the centerline probe on the uniformity distribution of flow field, a new static pressure probe is designed, which is smaller and shorter than the centerline probe. On the basis of the stability of the flow field, the Mach number distribution of the flow field measured by the static pressure probe which is driven by the moving measuring mechanism. The characteristics of the measured values are studied by wind tunnel test. The results show that:when Ma ≤ 0.95,the overall distribution and value of Mach number obtained by the static pressure probe is basically the same as those obtained by the centerline probe, but some flow field details, which mainly shows that Mach number of the static pressure probe has smaller fluctuation, higher accuracy and better uniformity index. |
| Key words:
transonic wind tunnel
flow quality
static pressure probe
mobile measurement
Mach number distribution
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| 收稿日期: 2020-12-18
修回日期:
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| DOI: 10.1051/jnwpu/20213940786 |
| 通讯作者: 熊波(1980-),中国空气动力研究与发展中心高级工程师,主要从事实验空气动力学研究。e-mail:6643807@qq.com
Email：6643807@qq.com |
| 作者简介: 邓海均(1989-),中国空气动力研究与发展中心工程师,主要从事实验空气动力学研究。
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| 相关功能 |
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| 作者相关文章 |
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| 邓海均 在本刊中的所有文章 |
| 熊波 在本刊中的所有文章 |
| 罗新福 在本刊中的所有文章 |
| 洪少尊 在本刊中的所有文章 |
| 刘奇 在本刊中的所有文章 |
| 蒲泓宇 在本刊中的所有文章 |
| 刘为杰 在本刊中的所有文章 |
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