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Radiation Modeling for the Reentry of the Stardust Sample Return Capsule

机译：星尘样品返回胶囊再入的辐射建模

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摘要

A high-fidelity three-dimensional approach is developed to simulate emission signatures from the shock layer around the Stardust sample return capsule at several points on its best-estimated trajectory. Calculations are performed with various gas chemistry, thermodynamic, and radiation models. Results are compared against calibrated imaging data acquired by a slitless echelle spectrometer. The present analysis is based on flowfields computed without the inclusion of ablation products, and the comparison is focused on radiation from atomic oxygen and nitrogen lines. The purpose is to apply and improve, if necessary, the current models used in nonequilibrium atmospheric entry simulations.
机译：开发了一种高保真三维方法，以模拟星尘样品返回舱周围最佳估计轨迹上几个点从激波层发出的辐射信号。使用各种气体化学，热力学和辐射模型进行计算。将结果与通过无缝echelle光谱仪获取的校准成像数据进行比较。本分析基于不包含消融产物的流场计算，而比较的重点是原子氧和氮线的辐射。目的是在必要时应用和改进在非平衡大气进入模拟中使用的当前模型。

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  • 来源
    《Journal of Spacecraft and Rockets》 |2010年第5期|p.741-752|共12页
  • 作者

    Yen Liu; Dinesh Prabhu; Kerry A. Trumble; David Saunders; Peter Jenniskens;

  • 作者单位

    NASA Ames Research Center, Moffett Field, California 94035;

    rnELORET Corporation, Sunnyvale, California 94086;

    rnNASA Ames Research Center, Moffett Field, California 94035;

    rnELORET Corporation, Sunnyvale, California 94086;

    rnSETI Institute, Mountain View, California 94043 Carl Sagan Center, 515 N. Whisman Road;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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