平流层飞艇热力学建模与仿真研究  

Thermodynamic modeling and simulation of stratospheric airship

作　　者：赵攀峰[1] 李大鹏[1] 谭百贺[1] 高东风 

机构地区：[1]中国电子科技集团公司第38研究所 [2]93534部队

出　　处：《合肥工业大学学报（自然科学版）》2013年第4期501-505,共5页Journal of Hefei University of Technology：Natural Science

摘　　要：文章基于对飞艇热状况形成机制的分析,建立了针对临近空间飞艇的热力学模型,主要有对流换热数学模型和辐射换热数学模型,并编写了热特性仿真计算软件,对飞艇在巡航阶段艇内气体温度变化进行仿真分析。结果显示:平流层飞艇氦气平均温度的变化主要受太阳辐射强度的影响,夜晚较低,白天较高,温差约为55℃;副气囊空气温度的变化趋势基本与氦气一致,且氦气和空气最大超热都超过40℃。By analyzing the formation mechanism of thermal character, a thermodynamic model for the stratospheric airship is constructed, including convective heat transfer model as well as solar radiation and long-wave transfer model. Based on the mathematical models, the corresponding simulation soft- ware is developed. The temperature change of helium and air in ballonet is simulated, and the results indicate that the helium temperature is mainly affected by solar radiation transfer, and is low at night- time and high at daytime, which results in the temperature difference of 55℃. The air temperature trend is identical with that of helium. Both gases will show super heat of over 40 ℃ at the worst case during cruising.

关 键 词：平流层飞艇 热力学模型 超热 

分 类 号：V274[航空宇航科学与技术—飞行器设计] O414.19[理学—理论物理]