Numerical research on the thermal performance of high altitude scientific balloons

被引:22
作者
Dai, Qiumin [1 ]
Xing, Daoming [1 ]
Fang, Xiande [2 ]
Zhao, Yingjie [2 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Energy & Power Engn, Nanjing 210094, Jiangsu, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Nanjing 210016, Jiangsu, Peoples R China
基金
中国博士后科学基金;
关键词
High altitude scientific balloon; Thermal performance; Infrared transmissivity; Internal infrared heat transfer; STRATOSPHERIC AIRSHIPS; PREDICTION; BEHAVIOR; ASCENT; SIMULATION; MODEL;
D O I
10.1016/j.applthermaleng.2016.11.193
中图分类号
O414.1 [热力学];
学科分类号
摘要
Internal infrared (IR) radiation is an important factor that affects the thermal performance of high altitude balloons. The internal IR radiation is commonly neglected or treated as the IR radiation between opaque gray bodies. In this paper, a mathematical model which considers the IR transmissivity of the film is proposed to estimate the internal IR radiation. Comprehensive ascent and thermal models for high altitude scientific balloons are established. Based on the models, thermal characteristics of a NASA super pressure balloon are simulated. The effects of film IR property on the thermal behaviors of the balloon are discussed in detail. The results are helpful for the design and operation of high altitude scientific balloons. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:51 / 57
页数:7
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