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Hypersonic static aerodynamics for Mars science laboratory entry capsule

机译：火星科学实验室入口舱的高超音速静态空气动力学

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摘要

The Mars Science Laboratory (MSL) entry capsule has been designed as a lifting entry for sufficient deceleration and precise landing performance. This paper presents the static aerodynamics analysis of the MSL capsule in the hypersonic entry process for exploration mission to Mars. Hypersonic static coefficients were derived from fully three-dimensional computational fluid dynamics solutions with a specified effective specific heat ratio on a typical trajectory state. Aerodynamic performance analysis ascertains the trim characteristics and static stability of the capsule with respect to the center of gravity (CG) location. Analysis results obtained show that CG location determines the trim characteristics and the static stability, and certain CG radial and axial shift alters the lifting entry performance, so that proper aerodynamic configuration and inner equipment layout is needed for CG adjustment to satisfy the static aerodynamics requirements.
机译：火星科学实验室（MSL）进入舱被设计为可充分减速和精确着陆性能的提升入口。本文介绍了高音速进入火星探测任务中MSL舱的静态空气动力学分析。高超声速静态系数是从具有完整轨迹的状态下具有指定有效比热比的完整三维计算流体动力学解决方案得出的。空气动力学性能分析确定了胶囊的修整特性和相对于重心（CG）位置的静态稳定性。分析结果表明，重心位置决定了配平特性和静态稳定性，重心的某些径向和轴向位移会改变起重进入性能，因此重心调整需要适当的空气动力学配置和内部设备布局，才能满足静态空气动力学要求。

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  • 来源
    《Acta astronautica》 |2014年第octaanova期|168-175|共8页
  • 作者

    Xiaofeng Yang; Wei Tang; Yewei Gui; Yanxia Du; Guangming Xiao; Lei Liu;

  • 作者单位

    State key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;

    State key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;

    State key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;

    State key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;

    State key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;

    State key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;

  • 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
  • 中图分类
  • 关键词

    MSL entry capsule; Computational fluid dynamics; Static aerodynamics; Hypersonic;

    机译：MSL进入胶囊;计算流体动力学;静态空气动力学;高超音速;

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