| 激波管高温空气绝对辐射功率实验测量 |
| |
| 引用本文： | 杨乾锁,彭志敏,刘春,竺乃宜,姜宗林.激波管高温空气绝对辐射功率实验测量[J].空气动力学学报,2009,27(Z1). |
| |
| 作者姓名： | 杨乾锁 彭志敏 刘春 竺乃宜 姜宗林 |
| |
| 作者单位： | 中国科学院力学研究所,高温气体动力实验室,北京,100190 |
| |
| 基金项目： | 国家自然科学基金(10772187)资助.本项研究得到国家自然科学基金项目支持:高温空气辐射特性和温度测量技术的研究 |
| |
| 摘 要： | 利用激波管加热技术,得到1000K～3000K温度范围内的高温空气,利用宽波段能量计、光电探测器以及滤波片等设备,测量出高温空气在0.3μm～9μm宽波段范围内绝对辐射功率,以及中心波长在4.26μm、5.23μm、8.32μm处、单位波长的绝对辐射功率;实验结果表明,在1000K～2000K温度范围内,高温空气宽波段的辐射功率约为60 W/cm~3·MP,且辐射主要集中在21μm～8μm波段范围内;当温度高于2000K以上,辐射功率随着温度的升高增大较快,且辐射向紫外、可见方向移动;在3000K时,高温空气在0.3μm～9μm宽波段范围内的辐射功率约为150W/(cm~3·MP).
|
| 关 键 词： | 辐射功率 辐射持续时间 高温空气 激波管 |
Experimental investigation of absolute radiation power for high temperature air by shock wave |
| |
| YANG Qian-suo,PENG Zhi-min,LIU Chun,ZHU Nai-yi,JIANG Zong-lin.Experimental investigation of absolute radiation power for high temperature air by shock wave[J].Acta Aerodynamica Sinica,2009,27(Z1). |
| |
| Authors: | YANG Qian-suo PENG Zhi-min LIU Chun ZHU Nai-yi JIANG Zong-lin |
| |
| Abstract: | The radiation in the wavelength range from 0. 3μm -0. 9μm emitted by shock - heated air at temperature from 1000K to 3000K has been experimentally estimated. With the energy detectors, photodiode detector and narrow-band infrared filters, the radiation intensities at 4.26μm, 5.23μm and 8. 32μm versus temperature are also intemperature from 1000K to 2000K, the radiation is mainly from the infrared band from 21μm to 8μm. The radiation power is increasing quickly when the temperature is above 2000K, and the radiation moving to ultraviolet -visible, the radiation power(0.3～9μm)is about 150W/(cm~3· MPa) when the temperature is up to 3000K. |
| |
| Keywords: | radiation power radiation duration high temperature air shock tube |
| 本文献已被 万方数据 等数据库收录！ |
|
