• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Spacecraft and Rockets >Correlation of HIFiRE-5a Flight Data with Computed Pressure and Heat Transfer
【24h】

Correlation of HIFiRE-5a Flight Data with Computed Pressure and Heat Transfer

机译：HIFiRE-5a飞行数据与计算压力和热传递的相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Flight pressure and heat flux data have been compared to angle-of-attack- and yaw-dependent computational-fluid-dynamics results for pressure distribution as well as laminar and turbulent heat-transfer results at three time points in the ascent trajectory. Computed pressures, normalized by free stream pressure, were interpolated to the flight Mach numbers at each time point throughout the ascent and descent trajectories, and angle of attack and yaw were estimated from measured pressure by determining the combination minimizing the difference between the measured and computed pressures. The resulting vehicle attitude was compared to the vehicle attitude derived from inertial measurement unit results from the flight. The two methods showed excellent agreement for the entirety of the ascent and reentry portions of the trajectory. A similar normalization of the laminar and turbulent computational-fluid-dynamics heat transfer results into Stanton number distributions was compared to flight heat transfer measurements, and transition times at a given location were inferred. Computational heat conduction analysis verified assumptions in the calculation of heat flux from temperature.
机译：将飞行压力和热通量数据与上升角轨迹上三个时间点的压力分布以及层流和湍流传热结果与攻角和偏航角相关的计算流体动力学结果进行了比较。通过自由流压力归一化的计算压力在整个上升和下降轨迹的每个时间点都被内插到飞行马赫数，并且通过确定使测量值与计算值之间的差异最小化的组合，从测量压力估算迎角和偏航角压力。将得到的飞行器姿态与从飞行中惯性测量单元得出的飞行器姿态进行比较。两种方法对于轨迹的整个上升和折返部分显示出极好的一致性。将层流和湍流计算流体动力学传热结果的相似归一化与斯坦顿数分布进行了比较，与飞行传热测量结果进行了比较，并推断出在给定位置的过渡时间。计算热传导分析验证了根据温度计算热通量的假设。

著录项

  • 来源
    《Journal of Spacecraft and Rockets》 |2017年第5期|1142-1152|共11页
  • 作者

    Jewell Joseph S.; Miller James H.; Kimmel Roger L.;

  • 作者单位

    US Air Force, Res Lab, Wright Patterson AFB, OH 45433 USA;

    US Air Force, Res Lab, Wright Patterson AFB, OH 45433 USA;

    US Air Force, Res Lab, Wright Patterson AFB, OH 45433 USA;

  • 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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号