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高空气球热力学模型与上升过程仿真分析

吕明云 巫资春

吕明云, 巫资春. 高空气球热力学模型与上升过程仿真分析[J]. 北京航空航天大学学报, 2011, 37(5): 505-509.
引用本文: 吕明云, 巫资春. 高空气球热力学模型与上升过程仿真分析[J]. 北京航空航天大学学报, 2011, 37(5): 505-509.
Lü Mingyun, Wu Zichun. Thermodynamic model and numerical simulation of high altitude balloon ascending process[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(5): 505-509. (in Chinese)
Citation: Lü Mingyun, Wu Zichun. Thermodynamic model and numerical simulation of high altitude balloon ascending process[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(5): 505-509. (in Chinese)

高空气球热力学模型与上升过程仿真分析

详细信息
    作者简介:

    吕明云(1969-),男,湖北公安人,副教授,lv503@buaa.edu.cn.

  • 中图分类号: V 221

Thermodynamic model and numerical simulation of high altitude balloon ascending process

  • 摘要: 基于对高空气球热力学环境的分析,建立了热力学与动力学耦合的高空气球动力学模型;并采用该模型对某高空气球的上升与驻留过程进行仿真分析.结果表明:高空气球上升过程中内部氦气存在"超冷"现象,其中平流层区域"超冷"明显,氦气平均温差为-19 K;由于"超冷",其上升速度曲线呈双"V"形变化;强太阳辐射与弱对流环境使驻留过程中氦气呈现"超热"现象,平衡时氦气平均温度比环境温度高39 K,球内氦气超压648.8 Pa.数值仿真的速度、平均温度变化规律与相关飞行试验数据相吻合,说明该仿真模型是有效的.

     

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出版历程
  • 收稿日期:  2010-03-05
  • 网络出版日期:  2011-05-30

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