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首页> 外文期刊>Journal of Spacecraft and Rockets >Hypersonic Flow and Radiation Analysis of the Automated Transfer Vehicle Jules Verne
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Hypersonic Flow and Radiation Analysis of the Automated Transfer Vehicle Jules Verne

机译：自动转运车儒勒·凡尔纳的超音速流和辐射分析

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Hypersonic flow field and radiation analyses are performed before and after flight to study the physical conditions experienced by the automated transfer vehicle Jules Verne during reentry before breakup. Results are compared to those obtained with a miniature Echelle spectrograph operated from an airborne platform, measuring the flux density of atomic line emissions from oxygen and nitrogen, as well as many metals. Molecular emissions from CN and A1O are also detected. The vehicle lost its solar panels at 86 km and first broke up at 75 km. The main cargo cabin held together until 68 km. Postflight analyses focus on altitudes of 86, 75, and 68 km. A first analysis includes only air species, correctly predicting the observed oxygen and nitrogen atomic line intensities. N2+ band emission is systematically overestimated by at least a factor of 20, indicating a need for revision of the radiation model for this system. A second analysis includes blowing of metals (aluminum, sodium, potassium, and magnesium) from the vehicle surface. The blowing rates are inferred by requiring the computed and measured emissions to match. Magnesium and aluminum originate from ablation of structural elements, while sodium and potassium may have originated as impurities in paint.
机译：在飞行之前和之后进行高超声速流场和辐射分析，以研究自动转运车朱尔斯·凡尔纳（Jules Verne）在折返前重返过程中所经历的身体状况。将结果与通过机载平台操作的微型Echelle光谱仪获得的结果进行比较，该Echelle光谱仪测量了来自氧和氮以及许多金属的原子线发射的通量密度。还检测到CN和AlO的分子排放。车辆在86公里处失去了太阳能电池板，并在75公里处首次破裂。主货舱一直保持到68公里。飞行后分析的重点是86、75和68 km的高度。第一个分析仅包括空气种类，可以正确预测观察到的氧和氮原子线强度。 N2 +波段发射被系统高估了至少20倍，这表明需要对该系统的辐射模型进行修订。第二种分析包括从车辆表面吹出金属（铝，钠，钾和镁）。通过要求计算出的排放量与测量出的排放量相匹配，可以推断出鼓风速率。镁和铝起源于结构元素的烧蚀，而钠和钾可能起源于油漆中的杂质。

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