Detailed spectrally and spatially resolved radiance has been measured in the Electric Arc Shock Tube (EAST) facility for conditions relevant to high speed entry into a variety of atmospheres, including Earth, Venus, Titan, Mars and the Outer Planets. The tests that measured radiation relevant for Earth re-entry are the focus of this work and are taken from campaigns 47, 50, 52 and 57. These tests covered conditions from 8 km/s to 15.5 km/s at initial pressures ranging from 0.05 Torr to 1 Torr, of which shots at 0.1 and 0.2 Torr are analyzed in this paper. These conditions cover a range of points of interest for potential flight missions, including return from Low Earth Orbit, the Moon and Mars. The large volume of measurements available from EAST is useful for statistical analysis of radiation data, but is problematic for identifying representative experiments for performing detailed analysis. Therefore, the intent of this paper is to select a subset of benchmark test data that can be considered for further detailed study. These benchmark shots are intended to provide more accessible data sets for future code validation studies and facility-to-facility comparisons. The shots that have been selected as benchmark data are the ones in closest agreement to a line of best fit through all of the EAST results, whilst also showing the best experimental characteristics, such as test time and convergence to equilibrium. The EAST data are presented in different formats for analysis. These data include the spectral radiance at equilibrium, the spatial dependence of radiance over defined wavelength ranges and the mean non-equilibrium spectral radiance (so-called "spectral non-equilibrium metric"). All the information needed to simulate each experimental trace, including free-stream conditions, shock time of arrival (i.e. x-t) relation, and the spectral and spatial resolution functions, are provided.
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机译：在电弧冲击管（EAST）设施中已测量了详细的光谱和空间分辨辐射率，用于与高速进入各种大气（包括地球，金星，泰坦，火星和外行星）相关的条件。测量与地球再入相关的辐射的测试是这项工作的重点，并取自运动47、50、52和57。这些测试涵盖的初始压力范围为0.05时，速度从8 km / s到15.5 km / s。从1 Torr到1 Torr，本文分析了0.1和0.2 Torr时的射弹。这些条件涵盖了潜在飞行任务的一系列兴趣点，包括从低地球轨道，月球和火星返回。 EAST提供的大量测量值可用于辐射数据的统计分析，但对于识别代表性实验进行详细分析是有问题的。因此，本文的目的是选择基准测试数据的一个子集，可以考虑对其进行进一步的详细研究。这些基准测试旨在为将来的代码验证研究和设施对设施的比较提供更多可访问的数据集。在所有EAST结果中，被选作基准数据的镜头与最适合的线最接近，同时还显示了最佳的实验特性，例如测试时间和收敛到平衡。 EAST数据以不同的格式显示以进行分析。这些数据包括处于平衡状态的光谱辐射度，在定义的波长范围内的辐射度的空间依赖性以及平均非平衡光谱辐射度（所谓的“光谱非平衡度”）。提供了模拟每条实验轨迹所需的所有信息，包括自由流动条件，到达的冲击时间（即x-t）关系以及光谱和空间分辨率函数。
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