平流层飞艇热仿真初步探讨

A Study of Thermal Simulation of Stratospheric Airships

结合平流层的环境条件和平流层飞艇的特点,文章详细分析了影响飞艇热平衡的基本热源和换热途径,建立了平流层飞艇的传热数学模型,给出了飞艇内表面冷热部分相互之间的辐射换热模型,在此基础上,对于某概念飞艇进行了仿真分析,得出了蒙皮热点、蒙皮冷点以及艇内气体的温度,为进一步开展平流层飞艇的热分析奠定基础。

This paper analyzes heat sources and heat exchange patterns that affect thermal balance and thermal performance of airships flying in stratospheric environment. Heat transfer models used for stratospheric airships are built, including those of solar radiation and long- wave transfer as well as convective heat transfer. Based on the mathematical models, thermal simulation program is developed. Simulation of a concept stratospheric airship is carried out, and the temperatures of the cold spot, hot spot and inside air are calculated.