平流层飞艇上升过程的数值模拟

以多用途平流层平台为背景,对平流层飞艇的温度和运动轨迹进行了研究.在详细分析飞艇所处环境、受力、传热传质情况的基础上,建立了飞艇的空间运动和热传递模型.通过对热固耦合方程数值求解,获得飞艇在整个上升过程中膜、内部氦气、内部空气温度及空间轨迹随时间的变化规律,为平流层飞艇热性能方面研究增加了数据积累.

Numerical Simulation of a Stratospheric Airship During Its Ascending

Considering the build up of a multi-purpose stratospheric platform,a study on predicting the temperature and trajectory of a stratospheric airship has been performed.A model is established to describe its aerodynamic behaviors and heat transfer on the basis of the environment encountered by the airship as well as the knowledge from fluid mechanics and heat transfer.By solving the coupling equations,the temperatures of the skin,internal helium,internal air of the airship and its trajectory during its entire ascending are calculated.The results increase the reference in the database for developing the stratospheric airships.